A majority of Americans say they believe 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 has tried to obstruct 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’s probe into Russian interference in the 2016 presidential election, according to a new AP–NORC poll published Friday.

About 58 percent of Americans say they think the president has tried to obstruct the investigation, while 40 percent say they don't think he has.

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Of those surveyed, 51 percent say that Congress should take steps to remove Trump from office if he is found to have obstructed the investigation, even it is found the president did not personally have inappropriate contacts with Russia.

The poll comes following a flurry of activity from the special counsel’s office, which as part of its investigation is looking into whether members of Trump's campaign colluded with Moscow.

Former White House national security adviser Michael Flynn’s sentencing over his false statements to prosecutors regarding foreign lobbying was delayed so he can complete his cooperation with Mueller, and Trump's former attorney Michael Cohen was sentenced to three years in prison on a number of charges, including campaign finance violations he said he committed at the Trump's direction.

While those charges are not Russia-specific, about 62 percent of respondents said they are extremely, very or moderately concerned about the possibility that Trump or others involved with his campaign had inappropriate contacts with the Russian government during the 2016 presidential campaign. Another 72 percent say they think Trump himself has done something either illegal or unethical.

Trump has continually attacked the investigation as a “witch hunt” and a “hoax” and has declared that his personal legal team will release a counter report whenever the inquiry is completed.

We will be doing a major Counter Report to the Mueller Report. This should never again be allowed to happen to a future President of the United States! — Donald J. Trump (@realDonaldTrump) December 7, 2018

However, the public still views Mueller's investigation favorably, with 57 percent saying they are extremely, very or moderately confident that the probe is fair and impartial, with 42 percent of Americans disagreeing.

Those numbers align with a recent Hill.TV–HarrisX poll that found 58 percent of those surveyed thought that Mueller's investigation was unbiased.

Hill.TV/HarrisX also found that a majority of Americans approve of Mueller expanding the scope of his investigation to include possible criminal activities that are not related to the investigation into Russian election interference.

The AP–NORC poll surveyed 1,067 adults from Dec. 13 to 16 and has a margin of error of 4.1 percentage points.