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.) fired back at a tweet by 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 on Monday regarding witnesses in the upcoming Senate impeachment trial, asking what the president is "hiding."

Schiff, a House impeachment manager who led the impeachment hearings in the lower chamber, called out Trump’s claim that House Democrats “didn’t want” former national security adviser John Bolton John BoltonDiplomacy with China is good for America The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep DOJ launches probe into Bolton book for possible classified information disclosures MORE to testify.

“No, Mr. President, we did ask John Bolton to testify. You ordered him not to, and blocked others, like Mick Mulvaney Mick MulvaneyMick Mulvaney to start hedge fund Fauci says positive White House task force reports don't always match what he hears on the ground Bottom line MORE,” Schiff tweeted.

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“All Americans know what a fair trial includes documents and witnesses," he added. "What are you hiding?”

No, Mr. President, we did ask John Bolton to testify. You ordered him not to, and blocked others, like Mick Mulvaney.



All Americans know what a fair trial includes documents and witnesses.



What are you hiding? https://t.co/XIMPtZa74O — Adam Schiff (@RepAdamSchiff) January 20, 2020

"They didn’t want John Bolton and others in the House. They were in too much of a rush. Now they want them all in the Senate. Not supposed to be that way!" Trump had tweeted earlier.

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Senate Democrats are looking to call Bolton and acting White House chief of Staff Mick Mulvaney to testify as part of the impeachment trial in the upper chamber, but Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellObama 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 (R-Ky.) has said he doesn't want to debate the question of witnesses until the end of opening arguments.

Senators will vote this week to decide whether to have witnesses testify in the trial or to delay the decision until later in the process.

Bolton said earlier this month he would testify if subpoenaed.