Democrats should not try to impeach President Donald Trump even if they regain the congressional majority in November, former CIA director and Secretary of Defense Leon Panetta warned Sunday on ABC News’ “This Week.”

“No not at all,” said Panetta, who was appointed to multiple jobs by President Barack Obama and was President Bill Clinton’s White House chief of staff, when asked about whether Democrats should “start impeachment proceedings” if they retake the House.

“I think the most important things that the Democrats could do is to allow [special counsel Robert] Mueller to complete his work,” Panetta said. “I think Bob Mueller’s report will ultimately determine whether or not there are going to be additional steps taken against the president, and they ought not to get ahead of that report because that will be the key to determining what happens in the future.”

Some Democratic lawmakers began calling for Trump’s impeachment shortly after he won the presidential election in November 2016 — well before Mueller launched his probe in May 2017 of allegations of collusion between Trump campaign officials and Russia interests.

Democratic leaders have been more cautious in recent weeks with the midterm elections looming on the horizon, insisting that economic policies and other concrete issues should remain at the forefront of the platform they’re selling to American voters.

Even so, far-Left liberal activists are demanding that Democratic senators remain firm in resisting Trump’s second Supreme Court nominee’s confirmation process. Judge Brett Kavanaugh’s first Senate hearing is scheduled to begin Tuesday.

Senate Minority Leader Chuck Schumer (D-N.Y.) claimed in late August that former Trump lawyer Michael Cohen’s plea deal with federal prosecutors and former Trump campaign manager Paul Manafort’s conviction on eight counts related to tax and bank fraud mean the Senate must stop considering Kavanaugh’s nomination.

Cohen reached a plea deal on eight felony counts — two of which concerned campaign finance law violations.He pleaded guilty to facilitating payments to two women claiming to have engaged in affairs with Trump: Stormy Daniels and Karen McDougal.

But Democratic senators have been scrambling for months to gather arguments for why the Senate should delay Kavanaugh’s hearings until they have chance to retake the majority in November and block Kavanaugh’s confirmation altogether.

Democrats are also seeking to delay Kavanaugh’s confirmation process by demanding copies of an estimated 1 million documents from Kavanaugh’s time as former President George W. Bush’s staff secretary. Kavanaugh, furthermore, worked as an attorney for Kenneth Starr’s Whitewater-Lewinsky investigation of former President Bill Clinton.

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Sen. John Cornyn (R-Texas) and other Republicans see the Democrats’ document demands as nothing more than an attempt to delay the nomination process until after the midterm elections in November. If Democrats are able to flip enough seats to regain a Senate majority, they would then potentially be in a position to block the nomination.

Grassley claimed during a judicial committee meeting August 16 that Kavanaugh submitted the most robust bipartisan committee questionnaire ever, at roughly 17,000 pages. Approximately 250,000 documents from the White House period have already been turned over to the Senate Judiciary Committee.

Related: Kavanaugh Receives Highest Rating from American Bar Association

Sen. Dick Durbin (D-Ill.) claimed on “Fox News Sunday” that Trump administration officials and GOP lawmakers are violating a “tradition of the Senate” by withholding the documents.

“If we’re lucky, we will see 6 percent of all of the documents that could be produced to reflect on Kavanaugh’s position on issues,” Durbin said. “He is saying and the White House is saying, ‘The American people have no right to know.'”

“If he’s so proud of his conservative credentials, show us the record,” Durbin said. “Stand before us. Trust the American people, and they’ll trust you.”

But Sen. Orrin Hatch (R-Utah) responded to Durbin’s comments on Twitter, writing, “This isn’t about [Kavanaugh’s] background — we have more than enough for that, based on long-set bipartisan standards … Let’s be honest about what this is: an effort to find something embarrassing when they’ve failed with the historic volume of paperwork already out.”

Kavanaugh received the highest possible rating on his credentials by the American Bar Association (ABA) on Friday, further complicating Democrats’ attempts to stall or kill or his confirmation process.