Former Attorney General Eric Holder Eric Himpton HolderThe Hill's Campaign Report: Trump's rally risk | Biden ramps up legal team | Biden hits Trump over climate policy Biden campaign forming 'special litigation' team ahead of possible voting battle Pompeo, Engel poised for battle in contempt proceedings MORE called for impeachment proceedings to begin if a report from BuzzFeed News saying President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE directed Michael Cohen to lie to Congress about plans to build a Trump Tower in Moscow during the 2016 presidential campaign are true.

ADVERTISEMENT

“If true - and proof must be examined - Congress must begin impeachment proceedings,” Holder tweeted Friday.

“[William] Barr must refer, at a minimum, the relevant portions of material discovered by Mueller. This is a potential inflection point,” he added, referring to Trump’s nominee for attorney general.

If true - and proof must be examined - Congress must begin impeachment proceedings and Barr must refer, at a minimum, the relevant portions of material discovered by Mueller. This is a potential inflection point. https://t.co/iaZmiHgL7L — Eric Holder (@EricHolder) January 18, 2019

Holder, who is reportedly considering a 2020 presidential run, has cast himself as a staunch opponent of Trump’s, particularly over the White House’s sprawling legal entanglements.

The BuzzFeed News report says that Trump met with Cohen, his former attorney and fixer, at least 10 times to discuss the tower while maintaining to the public that he had no business ties in Russia. Two law enforcement officials told BuzzFeed News that the president backed a plan for him to visit Russia and meet with President Vladimir Putin to begin negotiating the project’s construction.

“Make it happen,” the report says Trump told Cohen around the time.

Cohen admitted in November to lying to Congress about Trump’s Moscow property plans. He made the false statements while testifying before two congressional intelligence committees in 2017.

He reportedly told 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, who is leading an investigation into possible collusion between the Trump campaign and Russia in 2016 and obstruction of justice, of the pressure to lie.

The report was met with swift reaction from a number of Democrats who demanded answers, with House Intelligence Committee Chairman Adam Schiff Adam Bennett SchiffTop Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Overnight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Overnight Defense: House to vote on military justice bill spurred by Vanessa Guillén death | Biden courts veterans after Trump's military controversies MORE (D-Calif.) saying, “We will do what’s necessary to find out if it’s true.”

Cohen was sentenced in December to three years in prison on multiple charges, including lying to Congress about the Trump Tower Moscow project.