Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE's campaign retweeted a show of support from former 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-Texas) after President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE's campaign attacked the former vice president in an ad.

"Thank you for this. We all need to stand up against Donald Trump’s lies," Biden's campaign said on Tuesday on the social media platform.

Thank you for this. We all need to stand up against Donald Trump’s lies. https://t.co/NiuDtG9FOk — Team Joe (Text JOE to 30330) (@TeamJoe) October 1, 2019

ADVERTISEMENT

The former Texas congressman had slammed the Trump campaign in a tweet last week after it put out an ad painting Biden as corrupt.

"Trump’s ad about Joe Biden is a disgrace," O'Rourke tweeted on Friday. "Every one of us needs to call this exactly what it is: propaganda. Doing anything less is playing right into his hands."

Trump has stepped up his attacks against Biden after House Democrats launched an impeachment inquiry over allegations from a whistleblower that the president pushed Ukraine to investigate the former vice president.

The spot released from Trump's team zeroes in on Biden's efforts as vice president to push Ukraine to dismiss a senior prosecutor who at one point had investigated an energy company where Biden's son had served as a board member.

ADVERTISEMENT

Biden has said the Obama administration pushed for the prosecutor's removal because they believed he was not doing enough to combat corruption in Ukraine.

The advertisement, which started appearing on national cable outlets and digital platforms on Sunday, is slated to run for a week.

It is backed by $10 million, including $8 million from the campaign and another $2 million from the Republican National Committee (RNC).