Special counsel Robert Mueller broke his silence one month after he released the findings of his Russia probe. He explained that it would have been unconstitutional to charge a sitting president and suggested it is up to Congress to pursue impeachment. Former U.S. Deputy Assistant Attorney General Bob Litt joins CBSN to provide legal insight on what Mueller said Wednesday.

A growing number of Democrats, including some presidential candidates, say that Congress must start an impeachment investigation of President Trump. They believe Robert Mueller wants them to do it. The former special counsel spoke about the Russia investigation for the first time Wednesday. Mueller emphasized his final report did not clear the president of suspected criminality. Paula Reid reports.

House Democrats are weighing their next steps after Mueller's statement. His words put more pressure on House Speaker Nancy Pelosi to start an impeachment inquiry, but Pelosi says we still don't have all the facts. Nancy Cordes reports.

New York City Mayor and 2020 Democratic candidate Bill de Blasio is criticizing former Vice President Joe Biden over 1994's Violent Crime Control and Law Enforcement Act. He discussed his criticisms with CBSN's Elaine Quijano, and also reacted to increasing calls among Democrats for impeachment proceedings to begin.

Donald Trump is getting ready to kick off his re-election campaign as protesters call for his impeachment. Critics want Congress to intervene days to keep the president from finishing his term. Nikole Killion reports.

Tom Steyer, the billionaire investor and activist who has spent millions advocating for the impeachment of President Trump, is launching a campaign to take his job. He joins a field of 24 other candidates seeking the Democratic nomination for president. Steyer joins "CBS This Morning" for his first national television interview since launching his candidacy.

The House voted overwhelmingly to block a resolution to impeach President Trump. It was the first impeachment vote since Democrats took back control this year. Nancy Cordes has the latest.

The House voted overwhelmingly to block a resolution to impeach President Trump. It was the first impeachment vote since Democrats took back control this year. Nancy Cordes has the latest.

Former Special Counsel Robert Mueller appeared before two congressional committees on Wednesday. He mainly stuck to the script laid out in his written report, and sometimes appeared to struggle with questions. He said Russian election interference remains a threat, and emphasized that his investigation did not exonerate the President. Still, Mr. Trump declared victory. Nancy Cordes reports.

Virginia Democratic Senator Mark Warner is the vice chairman of the Senate Intelligence Committee -- the committee investigating Russian interference in the 2016 election. In his first interview since the Mueller hearings, Warner joins "CBS This Morning" from Washington to discuss why he still doesn't believe that impeachment proceedings should begin, his concerns about foreign election interference and the president's reaction to Mueller's testimony.