Thursday marked the start of a new Congress as Democrats not only took back the House, but began talk of impeaching President Trump.

Rep. Rashida Tlaib, D-Mich., a freshman lawmaker, told attendees at an event hosted by progressive organization MoveOn she was determined to strip Trump from the Oval Office.

She paraphrased a conversation she had had with her son.

“Look mama, you won. Bullies don’t win," she recalled him saying.

“You’re right, they don’t. And we’re gonna go in and impeach the motherfucker," said Tlaib, one of the first two Muslim women elected to Congress.

[Related: White House responds: 'You're not going to impeach this president']

Tlaib and John Bonifaz, a lawyer who launched the "Impeach Donald Trump Now" campaign, penned an op-ed in the Detroit Free Press Thursday that called Trump a "direct and serious threat" to America.

"On an almost daily basis, he attacks our Constitution, our democracy, the rule of law and the people who are in this country. His conduct has created a constitutional crisis that we must confront now," the op-ed states.

They said Trump ought to be impeached for a long list of offenses, including "obstructing justice; violating the emoluments clause; abusing the pardon power; directing or seeking to direct law enforcement to prosecute political adversaries for improper purposes; advocating illegal violence and undermining equal protection of the laws; ordering the cruel and unconstitutional imprisonment of children and their families at the southern border; and conspiring to illegally influence the 2016 election through a series of hush money payments."

While other lawmakers, including Democrats, have called for special counsel Robert Mueller to conclude his investigation into Trump's campaign and transition team, Tlaib and Bonifaz said the time to strike is now.

"Those who say we must wait for Special Counsel Mueller to complete his criminal investigation before Congress can start any impeachment proceedings ignore this crucial distinction," they write. "There is no requirement whatsoever that a president be charged with or be convicted of a crime before Congress can impeach him. They also ignore the fact that many of the impeachable offenses committed by this president are beyond the scope of the special counsel’s investigation."