Special Counsel Robert Mueller gave his first public remarks since his report on the investigation into Russia, Donald Trump, and the president’s 2016 campaign was released. In a brief speech from the Department of Justice (DOJ) on Wednesday, May 29, Mueller officially resigned from his position leading the investigation, but he didn’t exactly shut the book on the case.

“If we had had confidence that the president clearly did not commit a crime, we would have said so,” Mueller said. “We did not, however, make a determination as to whether the president did commit a crime.”

“Charging the president with a crime was ... not an option we could consider,” Mueller explained, referring to regulations that make it impossible for the DOJ to charge a sitting president. He then went on to make what many are interpreting as a veiled reference to impeachment: “The Constitution requires a process other than the criminal justice system to formally accuse a sitting president of wrongdoing.”

Big-name Democrats have seized on that to rally another round of calls for impeachment. Everyone from 2020 contenders to the bad girls’ caucus is sounding off on the possibility that the House of Representatives could introduce impeachment proceedings. Here’s what some Democrats are saying in the aftermath of Mueller’s public comments.

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