To start the effort to impeach Donald Trump, U.S. Rep. William Lacy Clay announced Friday he has filed articles of impeachment against the president.

“Impeachment is the only constitutionally available remedy that would directly address President Trump’s blatant and repeated attempts to obstruct justice, his repeated lies to Congress, and most importantly his lies to the American people,” Clay said in a statement.

Joining Clay as co-sponsors of House Resolution 13 are two other Democratic congressmen, Brad Sherman of California and Al Green of Texas.

H. Res. 13 cites Trump’s “repeated attempts to obstruct justice in the Russia investigation, as outlined in Special Counsel Robert Mueller’s report.”

It focuses on Trump’s termination of FBI Director James Comey, which, the resolution says, was designed to hinder or end the investigation of Russian interference in the 2016 presidential campaign.

The full text of H. Res. 13 is available at www.congress.gov