WASHINGTON, D.C. - Rep. Tim Ryan over the weekend joined the list of Democratic presidential candidates who publicly back impeaching President Donald Trump, arguing that Trump’s behavior during Special Counsel Robert Mueller’s probe constituted obstruction of justice.

During a nationally televised CNN Town Hall on Sunday night, Ryan asserted that Mueller would have prosecuted Trump if he wasn’t president, and the House of Representatives needs "to move forward with the impeachment process,” because it’s the House of Representatives’ job to oversee the White House.

“I have a duty and responsibility, and that duty and responsibility has led me to think we have to do this,” said Ryan, of Niles.

Ryan made similar remarks in Iowa after Mueller made public statements on Wednesday that said “after that investigation, if we had had confidence that the president clearly did not commit a crime, we would have said so.”

“I really don’t want to impeach, but at this point, I don’t know how we don’t,” the Ohio congressman told the Des Moines Register in a Friday interview.

Mueller’s report describes repeated efforts by Trump to interfere with the investigation, including telling former Attorney General Jeff Sessions to take control of the probe, firing FBI Director James Comey and efforts to oust Mueller.

Ryan joins a horde of other Democratic presidential candidates who support impeaching Trump, including U.S. Senators Kirsten Gillibrand of New York, Cory Booker of New Jersey, Kamala Harris of California, Elizabeth Warren of Massachusetts, Rep. Seth Moulton of Massachusetts, and South Bend, Indiana Mayor Pete Buttigeig

House Speaker Nancy Pelosi of California has called for further investigating Trump before deciding whether to launch the impeachment process.