All major 2020 Democratic candidates have joined the call to launch an impeachment inquiry against President Trump.

Driving the news: Speaker Nancy Pelosi announced on Sept. 24 that the House will open a formal impeachment inquiry into the president.

Want to impeach Trump

The bottom line: In a race that has been characterized by 2020 Democrats creating new litmus tests to measure themselves against Trump, calling for his impeachment is now the standard for all candidates.

Go deeper ... 2020 presidential election: Track which candidates are running

Editor's note: This piece is being updated as 2020 candidates refine their positions.