Texas Rep. Beto O'Rourke Beto O'RourkeJimmy Carter says his son smoked pot with Willie Nelson on White House roof O'Rourke endorses Kennedy for Senate: 'A champion for the values we're most proud of' 2020 Democrats do convention Zoom call MORE (D) said Thursday during a CNN town hall he has not changed his mind about impeaching President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE but said Democrats should wait until the results of 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 special counsel investigation are revealed.

Asked by CNN's Dana Bash whether he had changed his mind about voting for articles of impeachment in the House after initially saying in July that he would do so, O'Rourke said that he had not.

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"I haven't. Let me put it this way. There may be an open question as to whether the president, then the candidate, sought to collude with the Russian government in 2016," O'Rourke told the audience, before explaining that Trump's defense of Russia during a joint press conference with Vladimir Putin earlier this year was "collusion in action."

"[And when in] broad daylight, on Twitter, he asked his attorney general, Jeff Sessions Jefferson (Jeff) Beauregard SessionsRoy Moore sues Alabama over COVID-19 restrictions GOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs MORE, to end the Russia investigation, I would say that's obstruction in action," O'Rourke added.

"The best course to get there so that every member has all the facts and that they are compelling enough to do the right thing is to allow the full independence and integrity of the Bob Mueller investigation," O'Rourke said.

When pressed on why he would vote for impeachment without seeing the investigation's results, O'Rourke responded that enough public evidence already existed to convince him of Trump's potential guilt.

"I would liken impeachment to an indictment. There is enough there to proceed with the trial for a full vetting of the facts and to make the best informed decision in the interests of this country and our future," O'Rourke said.

When asked by CNN's Dana Bash if he's changed his mind after saying he'd vote to impeach President Trump this summer, O'Rourke replied: "I haven't" #TexasTownHall https://t.co/29rQpKYtsa pic.twitter.com/ULowpM65KX — CNN Politics (@CNNPolitics) October 18, 2018

Dozens of House Democrats signed on to an effort to introduce articles of impeachment against the president earlier this year, but the effort has yet to gain any traction among Democratic leadership.

If Democrats were to pass articles of impeachment upon potentially taking the House in November's midterm elections, the president would face a trial in the Senate that could lead to removal from office.

O'Rourke is running against incumbent Sen. Ted Cruz Rafael (Ted) Edward CruzThe Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Cruz blocks amended resolution honoring Ginsburg over language about her dying wish Trump argues full Supreme Court needed to settle potential election disputes MORE (R) for in next month's midterm. Recent polls show Cruz holding a single-digit lead.