The next big races between moderates and progressives are in pivotal Midwestern states

ST. PAUL, Minn. (AP) — Minnesotans are known for their niceness, but pleasantries are rare in the state's Democratic U.S. Senate primary.

The two leading candidates, U.S. Rep. Angie Craig and Lt. Gov. Peggy Flanagan, have clashed over electability, their ties to corporate interests and willingness to fight Republican President Donald Trump's administration in Washington. Millions of dollars in political ads have blanketed televisions and phone screens for a race that has become emblematic of Democrats' deeper divides.

The increasingly bitter contest will be among the next races where progressive candidates are facing more moderate rivals. August primaries in Michigan, Wisconsin and Minnesota will be another gauge of Democratic voters’ frustration with the establishment. The races across the Upper Midwest may also offer another test of the electability of hard-left candidates.

After notable progressive successes so far this year, party leaders worry these candidates could damage Democrats' brand and imperil their chances of retaking either chamber of Congress this fall or maintaining the governor's mansion in a battleground state ahead of the 2028 presidential election. The progressive left says recent results prove their message is the party's path to victory.

Flanagan, who is backed by progressive Sens. Bernie Sanders of Vermont and Elizabeth Warren of Massachusetts, last week convened a press conference to condemn “secretive dark money groups and special interests” she says are at work in the Minnesota race. She argued the groups are working to elect Craig, a more conventional Democrat backed by House Minority Leader Hakeem Jeffries of New York and other senior Democratic leaders.

“What we are facing right now in our party,” Flanagan told The Associated Press, “is the very folks who are standing in the way of the things that people need to be able to afford their lives, who are Democrats, are funded by these corporate special interests. That is the choice I think that we have, and people are onto it.”

Craig counters that Flanagan raised campaign funds from major companies while chair of the Democratic Lieutenant Governors Association. She says that if Flanagan becomes the Democratic nominee, Republicans would focus on her ties to an ongoing fraud inquiry into the state's Medicaid programs.

“The coalition we’re building is people in Minnesota who understand that in order to stop Donald Trump, we’ve got to win elections,” Craig told the AP. She warned that Minnesota is often underappreciated as “the very definition of a swing state, and we simply can’t take this U.S. Senate seat for granted.”

Craig argued that it was important that Democrats do not reject corporate funding while Republicans continue to embrace backing from wealthy donors. She also said she supports major campaign finance reforms restricting the role of money in politics.

“But until we get to that day, it’s naive to think that we’re not going to need resources,” Craig said.

The Minnesota primary, in which Flanagan and Craig are vying for the seat vacated by Democratic Sen. Tina Smith, is Aug. 11. Wisconsin also holds its primary that day — one week after voters will choose nominees in Michigan on Aug. 4.

In Michigan, Rep. Haley Stevens is running against progressive Abdul El-Sayed for the state's Democratic Senate nomination in a race Democrats must win to hold the seat held by Sen. Gary Peters, who is retiring and has endorsed Stevens. And in Wisconsin, democratic socialist state Rep. Francesca Hong has surged in the state's Democratic gubernatorial primary against more conventional Democratic lawmakers, including former Lt. Gov. Mandela Barnes and current Lt. Gov. Sara Rodriguez.

In each case, progressives hope to prove that an economically populist message resonates with voters beyond deep blue enclaves where they have had recent success, like New York City and Denver. But Democratic leaders fear that the insurgent candidates risk blowing winnable races for Democrats with messages considered too radical for most voters.

Craig also criticized progressives for gambling with Democrats' chances to retake the Senate due to poor campaigning and vetting of candidates. She noted the recent downfall of Graham Platner, who easily won the Democratic nomination for U.S. Senate in Maine in June but dropped out of the race last week after facing an allegation of sexual assault, which he denies.

“We just saw one of our best Senate opportunities go down in flames in Maine, potentially, with that same coalition,” Craig said.

“And many of the same people are working on the lieutenant governor’s campaign as Graham Platner’s campaign," Craig added. "My coalition is statewide. I’m going everywhere. I’m talking to everyone. I’m working to bring people back to the (Democratic Party).”

Following the fallout from the Platner scandal, progressives view the Upper Midwest Senate races as their last chance to shape the Democrats' Senate caucus and prove their theory of the case in the midterm elections.

“Abdul El-Sayed was already the most important primary candidate in the nation, and this underscores the importance of that race, both in the primary and the general,” said Adam Green, co-founder of the Progressive Change Campaign Committee, a political action committee that backs Flanagan and El-Sayed.

The organization views this year's Senate races in Michigan and Maine as key tests of whether progressives’ message and organizing strategies could prove effective in competitive races. The high-stakes strategy was meant to assuage potential concerns among Democratic voters that progressives are unelectable in competitive races ahead of the party’s 2028 presidential primary.

“Our hope is to not have an outlier but a pattern of shake-up-the-system economic fighters who win tough swing state elections," Green said.

The Upper Midwest has populist traditions going back decades, including by electing progressive and conservative populists, said Steven Schier, a political science professor at Carleton College in Northfield, Minnesota. The region was often a model for the Progressive Era’s reform-minded policies, but it also elected some of the most stridently conservative Cold War voices like Sen. Joseph McCarthy of Wisconsin.

“What’s interesting about the Upper Midwest is that you get well-developed and articulated left populism, and well-developed and articulated right populism in competition and combat. It produces some very lively election seasons,” Schier said.

More recently, the Great Lakes region has been the nation's marquee political battleground, with state legislatures and the presidential winner swinging between Democratic and Republican candidates for the last decade. No matter who wins, the results of the midterm primaries in the region will have major ripple effects in national politics.

“This culture will take broad concerns that populists bring up and trumpet them throughout the electoral system, and that’s true on both the right and the left up here," Schier said.

Follow the AP’s coverage of the 2026 election at https://apnews.com/projects/elections-2026/.

Francesca Hong, a candidate for Wisconsin governor, speaks to voters at a retirement home, Tuesday, July 7, 2026, in Madison, Wis. (AP Photo/Scott Bauer)

Michigan U.S. Senate candidates, Abdul El-Sayed, left, and Rep. Haley Stevens, D-Mich., are displayed on a television during a debate inside the spin room at WoodTV studios on Tuesday, July 7, 2026, in Grand Rapids, Mich. (AP Photo/Kristen Norman)

Minnesota Lt. Gov. Peggy Flanagan speaks during a press conference with political allies in St. Paul, Minn., Wednesday, July 8, 2026. (AP Photo/Matthew Brown)

FILE - Rep. Angie Craig, D-Minn., speaks at a news conference at the Capitol, Jan. 15, 2026, in Washington. (AP Photo/Allison Robbert, File)

FILE - This photo combination shows Rep. Angie Craig, D-Minn., left, Jan. 15, 2026, in Washington and Minnesota Lt. Gov. Peggy Flanagan, Nov. 5, 2024, in St. Paul, Minn. (AP Photo/Allison Robbert, Abbie Parr, file)

COLUMBIA, S.C. (AP) — Lindsey Graham’s sister, Darline Graham Nordone, has been named as her late brother's temporary replacement in the U.S. Senate after his unexpected death over the weekend.

South Carolina Gov. Henry McMaster announced at a news conference at the Statehouse on Monday that Nordone would serve the remaining months on Graham's current term, which expires in January. Senate Majority Leader John Thune said afterward that she will be sworn in Tuesday afternoon.

Nordone will be the first woman to represent the state in the Senate.

“It is such an honor,” she said, as dozens of Graham staffers and campaign advisers stood behind her, some with eyes glassy from welling tears. “Lindsey has always been there for me. And now, I will be there for him.”

Graham died on Saturday night at age 71. He never married or had a family of his own, but Nordone was often by her brother's side for the political touch points of his career, speaking at events and appearing in some of his campaign ads.

After their parents died at a young age, Graham was left to raise his sister, for whom he later became legal guardian. They were very close, and she was there as he filed reelection paperwork earlier this year, along with her children and grandchildren.

“To Lindsey, I miss you more than I can even put into words," Nordone said, emotion rising in her voice. "But I'm going to do this. I got it.”

Introducing Nordone, McMaster said the two had spoken in “in the wee hours of Sunday morning” after Graham's death, and he asked her to serve.

“I had wondered what you would say, and I was humbled by your quickness to see the duty that you had to serve,” McMaster said. He added that President Donald Trump “thought it was a great idea” when he later told him of his pick. Trump announced his support for Nardone to fill the seat earlier Monday.

Nordone has worked as an optician and at various state agencies, including the South Carolina Commission for the Blind and the Department of Employment and Workforce. She lives in Lexington, is a graduate of the College of Charleston and has a master’s degree in rehabilitation counseling.

A special election will be held next month to pick a new Republican nominee in the general election for Graham’s seat. He had been seeking a fifth term this year.

The rare open Senate seat has ignited a scramble among South Carolina’s most ambitious conservatives, who have been eager to climb the political ladder.

Republicans just finished a sprawling and bruising contest to figure out their nominee for succeeding McMaster, who is wrapping up his second term. State Attorney General Alan Wilson won the nomination, overcoming a field that included Lt. Gov. Pamela Evette, Rep. Nancy Mace and Ralph Norman — all of whom are now eyeing Graham’s seat following his death over the weekend.

According to South Carolina law, a one-week filing period for a special primary election begins on the second Tuesday after the candidate’s death, or July 21.

The special primary election would be held on the second Tuesday after that filing period closes, or Aug. 11. Any necessary runoff would follow two weeks after that, or Aug. 25.

From that point, the new nominee would have just over two months to campaign for the general election on Nov. 3.

All of this is problematic according to federal law, which requires military and overseas ballots to go out 45 days before any federal election. For the special election primary, that would have been June 27. Federal Election Commission officials didn’t immediately return a message seeking clarity about the process.

Graham died on Saturday night, and a preliminary medical examiner report said he suffered a tear in his aorta, known as an aortic dissection.

In the hours after Graham's death was announced, South Carolina’s Republican circles were already swirling with rumors about possible replacements.

Evette, who has served nearly eight years alongside McMaster and received his endorsement in the governor's race, is one possibility. She lost the June 23 runoff to Wilson.

Mace and Norman could run in the special primary as well. Neither of them are running for reelection to their House seats.

But another Republican from the state, Rep. Russell Fry, could be a possibility. The two-term lawmaker represents the growing area around Myrtle Beach, and he's been a top Trump ally.

Businessman Mark Lynch, whom Graham defeated in the primary, may jump into the race. So could Mark Sanford, the state's former governor who served two separate stints in the House.

Treasury Secretary Scott Bessent, who lived in South Carolina before joining the Trump administration, has fielded calls about potentially replacing Graham but doesn’t have interest in the role and enjoys working for the president, according to a person who insisted on anonymity to describe private conversations.

No Democrat has won a Senate seat in South Carolina in decades, and Republicans in recent history typically take statewide seats by double digits. When Graham last ran in 2020, he defeated his Democratic opponent, Jaime Harrison, by a 10 percentage point margin.

So while history suggests that Graham was en route to a fifth term, Republicans are carefully surveying the landscape.

Charleston pediatrician Annie Andrews won the Democratic nomination last month and has raised more than $8 million in the race, and she had just under $3 million cash on hand at the end of May, according to federal filings. Graham had taken in $6 million, with just over $4 million on hand.

In a statement Sunday, Andrews called on South Carolinians to join her “in setting partisanship aside and offering gratitude" to Graham for his service.

Harrison, noting that he and Graham “had our share of political disagreements,” wrote on social media that he “always appreciated that even in our fiercest political battles, we could still share a conversation, a laugh, and a mutual respect for South Carolina and the institutions we were both privileged to serve.”

Associated Press writer Fatima Hussein in Washington contributed to this report.

Kinnard reported from Charleston, South Carolina, and can be reached at http://x.com/MegKinnardAP.

South Carolina Gov. Henry McMaster speaks to media to announce the appointment of Darline Graham Nordone to fill the vacancy created by the passing of her brother, U.S. Sen. Lindsey Graham, at the statehouse Monday, July 13, 2026, in Columbia, S.C. (AP Photo/Sean Rayford)

Newly appointed U.S. interim Senator, Darline Graham Nordone, with South Carolina Gov. Henry McMaster, right, and Sen. Time Scott (R-SC), left, speaks to members of the press after being appointed of to fill the vacancy created by the passing of her brother, U.S. Senator Lindsey Graham, at the statehouse Monday, July 13, 2026, in Columbia, S.C. (AP Photo/Sean Rayford)

Newly appointed U.S. interim Senator, Darline Graham Nordone, with South Carolina Gov. Henry McMaster, right, speaks to members of the press after being appointed of to fill the vacancy created by the passing of her brother, U.S. Senator Lindsey Graham, at the statehouse Monday, July 13, 2026, in Columbia, S.C. (AP Photo/Sean Rayford)

FILE - Vice President Joe Biden, right, administers the Senate oath to Sen. Lindsey Graham, R-S.C., left, as Graham's sister Darline Graham looks on during a ceremonial re-enactment swearing-in ceremony, Jan. 6, 2015, in the Old Senate Chamber on Capitol Hill in Washington. (AP Photo/Susan Walsh, File)

FILE - Republican presidential candidate, Sen. Lindsey Graham, R-S.C., accompanied by his sister Darline, left, speaks at the GOP headquarters in Columbia, S.C., Sept. 1, 2015, where he filed for the South Carolina Presidential Primary. (AP Photo/Richard Shiro, File)

FILE - Darline Graham Nordone, sister of Sen. Lindsey Graham, R-S.C., walks to the stage before his announcement for presidency on Monday, June 1, 2015, in Central, S.C. (AP Photo/Rainier Ehrhardt, File)

FILE - South Carolina Gov. Henry McMaster speaks to reporters, May 5, 2026, in Columbia, S.C. (AP Photo/Jeffrey Collins, File)

FILE - Sen. Lindsey Graham, R-S.C., takes the oath of office with Vice President Dick Cheney, right, during a re-enactment swearing-in ceremony in the Old Senate Chamber on Capitol Hill in Washington, Jan. 7, 2003, following his election to the Senate. (AP Photos/Evan Vucci, File)

FILE - Republican presidential candidate former President Donald Trump speaks as Sen. Tim Scott, R-S.C., and Sen. Lindsey Graham, R-S.C., listen, at a primary election night party at the South Carolina State Fairgrounds in Columbia, S.C., Feb. 24, 2024. (AP Photo/Andrew Harnik, File)