President Donald Trump's approval rating has dropped to 32 percent, according to a poll from Pew Research.
The survey, conducted between Nov. 29 and Dec. 4 among 1,503 members of the general public, found that 63 percent of Americans disapprove of Trump's performance.
Among registered voters, Trump's approval rating was 34 percent.
Pew measured Trump's approval rating at 39 percent in early February, shortly after his inauguration. By October, it was 34 percent.
Views on the Trump administration are sharply divided along partisan lines. While 71 percent of Democrats told pollsters they thought the probe being led by special counsel Robert Mueller into alleged ties between the Trump 2016 presidential campaign and Russia was "very important," only 19 percent of Republicans thought the same.
The poll also found that 26 percent of Republicans and Republican-leaning independents thought Trump campaign officials "definitely" or "probably" had improper contact with Russian officials during the election campaign, compared to 82 percent of Democrats and Democratic-leaning independents.
Trump has always denied that Russia had any involvement with his campaign.
Michael Flynn, Trump's former national security adviser, pleaded guilty to lying to the FBI on Dec. 1. Trump fired Flynn in February after he admitted to lying to Vice President Mike Pence about the extent of his contact with a Russian ambassador during Trump's transition into the White House.
According to the revelations reported by HuffPost on Dec. 7, Flynn told an ex-business partner that sanctions on Russia would be "ripped up" when Trump took office.
The allegation comes from an unnamed whistleblower who reportedly met with Alex Copson, Flynn's former business partner, on the day of Trump's inauguration.
Copson reportedly told the whistleblower that Flynn was already planning a joint energy project with Russia in the Middle East. Flynn allegedly sent Copson a text message saying it was "good to go."
Democratic Rep. Elijah Cummings urged Trey Gowdy, chair of the House Oversight and Government Reform Committee, to subpoena the White House for documents that could confirm the whistleblower's report.
"I believe the American people want Congress to hold President Trump and his administration accountable and they are tired of Republicans in Congress putting their heads in the sand when faced with credible allegations of grave abuses while at the same time conducting investigations of allegations against Secretary Clinton that were debunked years ago," said Cummings.
Trump indicated he has sympathy for Flynn's position.
"Hillary Clinton lied many times to the FBI, nothing happened to her," Trump said on Dec. 4, according to the BBC. "Flynn lied and they destroyed his life, I think it's a shame."
Sources: Pew Research, HuffPost, BBC / Featured Image: Shealah Craighead/Flickr via Wikimedia Commons / Embedded Images: Christian Ricardo/Dvidshub via Wikimedia Commons, Gage Skidmore/Flickr via Wikimedia Commons