George ConwayGeorge Thomas ConwayJuan Williams: The new abnormal Bush economics director says psychiatrists labeled Trump 'total narcissist' George Conway slams Trump for viewing Mueller probe 'purely in terms of your own ego' MORE, attorney and husband of White House counselor Kellyanne ConwayKellyanne Elizabeth ConwayDem criticizes newest calendars for Trump Interior chief as 'fake' Bush economics director says psychiatrists labeled Trump 'total narcissist' Hatch Act complaints jumped nearly 30 percent Trump's first year in office: report MORE, called for Congress to remove President TrumpDonald John TrumpWhat the Mueller report tells us about Putin, Russia and Trump's election Fox's Brit Hume fires back at Trump's criticism of the channel Anti-US trade war song going viral in China MORE

"What the Mueller report disturbingly shows, with crystal clarity, is that today there is a cancer in the presidency: President Donald J. Trump," the frequent Trump critic wrote in a Thursday Washington Post op-ed. 

"Congress now bears the solemn constitutional duty to excise that cancer without delay," he added. 

Conway made the case that the newly released Mueller report shows that Trump committed offenses worthy of removal from office.

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"The investigation that Trump tried to interfere with here, to protect his own personal interests, was in significant part an investigation of how a hostile foreign power interfered with our democracy," he wrote. "If that’s not putting personal interests above a presidential duty to the nation, nothing is."

Conway also said that former President Nixon, who resigned amid the Watergate scandal, was "passive" compared to Trump. 

Democrats have been split Thursday on whether impeachment is an avenue they would pursue. House Majority Leader Steny HoyerSteny Hamilton HoyerSenators say they've reached deal on Puerto Rico aid 5 things to watch as Trump, Dems clash over investigations GOP lawmaker: Trump has engaged in multiple actions that 'meet the threshold for impeachment' MORE (D-Md.) said that "impeachment is not worthwhile at this point." However, Rep. Al GreenAlexander (Al) N. GreenTop House Dem calls to launch impeachment inquiry if McGahn skips testimony Tlaib blasts arrests of pro-impeachment protesters on Capitol Hill The Hill's Morning Report - Presented by Pass USMCA Coalition - Deadline approaches for 2020 Dems MORE (D-Texas) reiterated his support for impeaching the president and Rep. Alexandria Ocasio-CortezAlexandria Ocasio-CortezSteve Bullock puts Citizens United decision at center of presidential push Fix the climate with smaller families Dem Sen. Markey faces potential primary challenge in Massachusetts MORE (D-N.Y.) said she would sign on to a resolution calling for an investigation into whether Trump committed impeachable offenses. 

The Justice Department Thursday released a redacted version of the Mueller report, which detailed the results of special counsel Robert MuellerRobert (Bob) Swan MuellerSasse: US should applaud choice of Mueller to lead Russia probe MORE's probe into whether Russia interfered in the 2016 election.