Just days into the long summer recess, a number of House Democrats have endorsed the drive to impeach 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, inching the number of supporters closer to a majority of the House Democratic Caucus in what could pose new challengers for Speaker Nancy Pelosi Nancy PelosiPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Trump signs largely symbolic pre-existing conditions order amid lawsuit MORE (D-Calif.) and her bid to defuse the effort.

Supporters of the impeachment strategy had predicted support would only grow as lawmakers traveled home for the six-week break to gauge the temperature of voters. And they haven’t been disappointed.

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On Monday, Reps. Emanuel Cleaver (Mo.) and Dina Titus Alice (Dina) Costandina TitusShakespeare Theatre Company goes virtual for 'Will on the Hill...or Won't They?' Safe, responsible casino gaming supports state economies at crucial time Biden to tear into Trump over coronavirus, school reopenings in Delaware remarks MORE (Nev.) endorsed the push, joining at least a dozen other Democrats who have signed on since last Wednesday, when former 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 testified before Congress on his investigation into Russia's election interference and whether Trump obstructed the probe.

That list includes a pair of freshmen — Reps. Mike Levin (Calif.) and Kim Schrier Kimberly (Kim) Merle SchrierPelosi: House will stay in session until agreement is reached on coronavirus relief Washington Rep. Kim Schrier wins primary US ill-prepared for coronavirus-fueled mental health crisis MORE (Wash.) — who flipped Republican-held seats in last year’s midterms; Rep. Derek Kilmer Derek Christian KilmerPelosi asks panels to draft new COVID-19 relief measure Lawmakers fear voter backlash over failure to reach COVID-19 relief deal Clark rolls out endorsements in assistant Speaker race MORE (Wash.), who heads the centrist group of New Democrats; and a member of leadership, Rep. Katherine Clark Katherine Marlea ClarkDemocratic leaders: Supreme Court fight is about ObamaCare Rep. Robin Kelly enters race for Democratic caucus vice chair Clark rolls out endorsements in assistant Speaker race MORE (Mass.), the vice chairwoman of the caucus.

Other lawmakers signing on in recent days are Democratic Reps. Lori Trahan Lori A. TrahanEthics panel finds Massachusetts Democrat didn't violate rules Democrats on House Armed Services panel 'dismayed and gravely concerned' with Esper The Hill's Coronavirus Report: Pfizer's Mikael Dolsten says vaccine development timeline being cut in half; House poised to pass 4 billion relief package MORE (Mass.), John Garamendi John Raymond GaramendiWuhan is the final straw: The world needs to divest from China GOP seizes on 'defund the police' to galvanize base Peace Corps faces uncertain future with no volunteers in field MORE (Calif.), Peter DeFazio Peter Anthony DeFazioAnxious Democrats amp up pressure for vote on COVID-19 aid Airline CEOs, union leaders implore Congress and the administration to avoid Oct. 1 furloughs Airline CEOs plead with Washington as layoffs loom MORE (Ore.), Lisa Blunt Rochester (R.I.), Ann Kuster Ann McLane KusterPelosi seeks to put pressure on GOP in COVID-19 relief battle Clark rolls out endorsements in assistant Speaker race Pelosi: House will stay in session until agreement is reached on coronavirus relief MORE (N.H.), Chris PappasChristopher (Chris) Charles PappasTrump-backed candidate wins NH GOP primary to take on Pappas Democrats demand Esper explicitly ban Confederate flag and allow Pride, Native Nations flags Trade groups make lobbying push to be included in small business loan program MORE (N.H.), Suzan DelBene (Wash.) and Denny Heck (Wash.).

The additions have pushed the number of Democrats seeking impeachment to 106, according to a tally being kept by The Hill. Rep. Justin Amash Justin AmashInternal Democratic poll shows tight race in contest to replace Amash Centrist Democrats 'strongly considering' discharge petition on GOP PPP bill On The Trail: How Nancy Pelosi could improbably become president MORE (I-Mich.), who left the Republican Party earlier this month, is also backing the effort.

That means pro-impeachment Democrats are just a dozen votes shy of 118 — a “majority of the majority,” or more than half of the 235 Democrats in the lower chamber.

It’s likely impeachment backers will reach that symbolic mark in the coming days or weeks. Heck, for instance, said there are “at least” 20 to 30 on-the-fence Democrats seriously considering their endorsement heading into the long break.

Before leaving for the six-week summer recess, Pelosi told reporters that she had “no complaint” about Democrats who are pushing for an impeachment inquiry and criticizing her for resisting one. In a shift of tone, she told rank-and-file members in a closed-door meeting that’s it’s up to them to decide how best to represent their districts and constituents.

But Pelosi, who’s wary of protecting moderate Democrats heading into 2020, reiterated that she was in no rush to launch an impeachment investigation — “We will proceed when we have what we need to proceed” — and 118 pro-impeachment votes aren’t likely to move the entrenched Speaker off her position.

Even some supporters of an impeachment inquiry cautioned against reading too much into the 118-vote milestone; 218, the number of votes needed to formally launch the inquiry, is the only number that matters, they said.

“There’s not much difference between 100 and 118. I don’t think half the caucus represents a magic number,” said Rep. Cedric Richmond Cedric Levon RichmondRep. Bill Pascrell named chair of House oversight panel Rep. Cedric Richmond set to join House Ways and Means Committee Biden campaign ratchets up courting of Black voters, specifically Black men MORE (D-La.), a House Judiciary Committee member who backs an impeachment inquiry, told The Hill on Monday.

Asked what number is significant, Richmond, a co-chairman of the Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE campaign, replied, “Two hundred eighteen. That’s the majority of the House. That’s the number it takes to pass the bill and to get articles of impeachment out of the House and to the Senate.

“We still have steps to go,” he said.

For individual members, the reasons behind their support for impeachment are as diverse as the caucus itself. Many have been moved by the testimony of Mueller, who told a pair of committees last week that members of Trump’s campaign team were eager to accept help from Russian operatives during the 2016 campaign and that Trump had lied about that support and attempted to curtail the investigation in ways that may have been criminal.

“When looking at the evidence presented, there is obviously enough smoke to investigate the potential fire of corruption,” Cleaver said Monday.

Others are furious with Trump’s attacks on minorities, including his recent tweets targeting Rep. Elijah Cummings Elijah Eugene CummingsBlack GOP candidate accuses Behar of wearing black face in heated interview Overnight Health Care: US won't join global coronavirus vaccine initiative | Federal panel lays out initial priorities for COVID-19 vaccine distribution | NIH panel: 'Insufficient data' to show treatment touted by Trump works House Oversight Democrats to subpoena AbbVie in drug pricing probe MORE (D-Md.), a prominent member of the Congressional Black Caucus and head of the House Oversight and Reform Committee. Rep. Steve Cohen Stephen (Steve) Ira CohenTennessee Rep. Steve Cohen wins Democratic primary Democrats exit briefing saying they fear elections under foreign threat Texas Democrat proposes legislation requiring masks in federal facilities MORE (D-Tenn.) has said he’s keeping close tabs on such racially charged incidents and intends to introduce articles of impeachment compiling them later in the year.

Democrats have also been up in arms over Trump’s stonewalling of their investigations, and even those resisting impeachment in the near term are warning that their patience is wearing thin.

“There will be a deadline because we will either get the answers that we need or the president's obstruction will be so complete that that itself is a grounds for his impeachment,” Rep. Adam Schiff Adam Bennett SchiffSchiff claims DHS is blocking whistleblower's access to records before testimony GOP lawmakers distance themselves from Trump comments on transfer of power Rubio on peaceful transfer of power: 'We will have a legitimate & fair election' MORE (D-Calif.), chairman of the House Intelligence Committee, told NBC’s “Meet the Press” on Sunday.

Rep. Jerrold Nadler Jerrold (Jerry) Lewis NadlerDemocrats shoot down talk of expanding Supreme Court Schumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (D-N.Y.) is going a long step further. On Friday, the chairman of the House Judiciary Committee announced an effort to secure grand jury information underlying Mueller’s investigation by specifically referencing impeachment as the basis for the court request.

Nadler has reportedly been at odds with Pelosi over whether to launch an impeachment inquiry in his committee. His latest strategy keeps impeachment near at hand without launching the formal process — or forcing uncomfortable votes on vulnerable colleagues before there’s more public support for ousting the president.

“My personal view is that he richly deserves impeachment. He has done many impeachable offenses. He's violated the law six ways from Sundays,” Nadler said on CNN’s “State of the Union” program Sunday.

“But that's not the question,” he added. “The question is, can we develop enough evidence to put before the American people?”