Forty-two percent of Americans think President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE should be impeached and removed from office, according to a new CNN poll.

The survey found that support for impeaching Trump is divided along party lines, with backing from 77 percent of Democrats and just 9 percent of Republicans.

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Overall support for impeaching Trump is at a level similar to the public's view of President Nixon in 1974. CNN notes that support for impeaching Nixon reached 73 percent in March 1974. But that survey, conducted by Harris Poll, took place after many crucial points in the Watergate scandal, including after the Senate Watergate hearings, after the "Saturday Night Massacre" and after it became known that Nixon bugged the Oval Office.

Nixon resigned in August 1974 before any impeachment vote came up.

In addition to 42 percent of Americans supporting the idea of impeaching Trump, 41 percent approve of how special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE is handling the investigation into Russian meddling in the 2016 election. That approval level was at 44 percent in May.

Mueller's favorability rating is at 32 percent.

The CNN poll was conducted among a national sample of 1,012 Americans from June 14 to 17. It has a margin of error of 3.7 percentage points.