A plan by Chilean President Sebastián Piñera's to draft a new constitution has been criticized by the opposition and even his own political ranks.

The opposition said Monday that Piñera's plan, one of a series of measures aimed at quelling weeks of protests, does not go far enough.

The opposition says the process, as outlined by the president, is inadequate, partly because it relies on current legislators who are viewed with suspicion by protesters.

Chile's President Sebastian Pinera arrives to La Moneda presidential palace in Santiago, Chile, Monday, Nov. 11, 2019. The government announced Sunday it has agreed to start the process to write a new constitution for the country, one of the most repeated demands of protesters who have taken to the streets in often violent demonstrations in recent weeks. (AP PhotoEsteban Felix)

Chile's President Sebastian Pinera arrives to La Moneda presidential palace in Santiago, Chile, Monday, Nov. 11, 2019. The government announced Sunday it has agreed to start the process to write a new constitution for the country, one of the most repeated demands of protesters who have taken to the streets in often violent demonstrations in recent weeks. (AP PhotoEsteban Felix)

Students in Chile began protesting nearly a month ago over a subway fare hike. The demonstrations morphed into a massive protest movement over inequality and other wide-ranging grievances.

While most protests have been peaceful, at least 20 people have died in clashes between protesters and police.

Chile's President Sebastian Pinera arrives to La Moneda presidential palace in Santiago, Chile, Monday, Nov. 11, 2019. The government announced Sunday it has agreed to start the process to write a new Constitution for the country, one of the most repeated demands of protesters who have taken to the streets in often violent demonstrations in recent weeks. (AP PhotoEsteban Felix)

Chile's President Sebastian Pinera arrives to La Moneda presidential palace in Santiago, Chile, Monday, Nov. 11, 2019. The government announced Sunday it has agreed to start the process to write a new Constitution for the country, one of the most repeated demands of protesters who have taken to the streets in often violent demonstrations in recent weeks. (AP PhotoEsteban Felix)