Pelosi: Trump's comments prove he doesn't 'know right from wrong'

House Speaker Nancy Pelosi said Thursday that President Donald Trump's openness to a foreign government offering damaging information about a political rival is "a very sad thing" and pointed to legislation from Democrats calling on campaigns to report foreign offers of assistance.

"The President gave us once again evidence that he does not know right from wrong," she said at her weekly press conference. "It's a very sad thing, a very sad thing that he does not know right from wrong."

She repeated her belief that Trump has participated in "a criminal cover up."

And she mentioned legislation that will mandate campaigns to report foreign offers of assistance.

"It's so self-evident as a matter of ethics but we'll have to codify it," she said.

Trump said in comments released Wednesday evening that he would listen if a foreign government approached him with damaging information about a political rival -- and wouldn't necessarily report the contact to the FBI.

"I think you might want to listen," Trump said in an interview with ABC News that aired on Wednesday. "There isn't anything wrong with listening."