Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellTrump 'no longer angry' at Romney because of Supreme Court stance 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 The Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power MORE (R-Ky.) scolded Senate Republican colleagues on Thursday for skipping a Wednesday night vote, warning them that attendance needs to improve if anything is to get done in August, according to sources.

Congress usually takes the month of August off to meet with constituents around the country during what is known as a state work period.

But facing pressure from 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, McConnell canceled this year’s August recess — to the chagrin of many of his colleagues.

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McConnell warned fellow Republican senators at a private lunch meeting Thursday that he would have trouble moving legislation next week if the attendance remains as abysmal as it was this week.

He explained they were able to move business on the Senate floor yesterday and today only because they had locked in procedural agreements with Senate Minority Leader Charles Schumer Chuck SchumerPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' 3 reasons why Biden is misreading the politics of court packing Cruz blocks amended resolution honoring Ginsburg over language about her dying wish MORE (D-N.Y.) in advance.

Ten senators, almost all Republicans, missed two votes on Thursday.

That could be a big problem next week when McConnell tries to set up additional votes.

Eleven senators, again mostly Republicans, missed a vote that was scheduled for late Wednesday afternoon.

“He’s rightfully, I think, upset. I wasn’t at lunch but I knew what he was going to say,” said Sen. John Thune John Randolph ThuneSenate passes resolution reaffirming commitment to peaceful transition of power Susan Collins faces political land mine with Supreme Court fight Abortion stirs GOP tensions in Supreme Court fight MORE (S.D.), chairman of the Senate Republican Conference.

Eight Republican senators, including Sen. John McCain John Sidney McCainAnalysis: Biden victory, Democratic sweep would bring biggest boost to economy The Memo: Trump's strengths complicate election picture Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' MORE (R-Ariz.), who is at home indefinitely battling cancer, missed Thursday’s votes, effectively giving Democrats a majority in the chamber.

Only two Democrats, Sens. Dick Durbin Richard (Dick) Joseph DurbinThe Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Feinstein 'surprised and taken aback' by suggestion she's not up for Supreme Court fight Grand jury charges no officers in Breonna Taylor death MORE (Ill.) and Patty Murray Patricia (Patty) Lynn MurraySenate Democrats introduce legislation to probe politicization of pandemic response Trump health officials grilled over reports of politics in COVID-19 response CDC director pushes back on Caputo claim of 'resistance unit' at agency MORE (Wash.), missed the votes.

One Republican who attended Thursday’s lunch said the senators who were absent, not the ones who heard McConnell’s stern speech, need to be chastised.

“He was preaching to the choir,” the lawmaker said.

Another GOP senator said that most of his colleagues agreed about the importance of showing up for working during a time that is usually reserved for the August recess but some complained about it.

“He said, ‘You got to show up,’ ” said the source, who added a couple of colleagues who have had to make long flights back to Washington said the unusual August session is a personal “hardship” for them.

Two Republican senators who didn't make it to Washington this week — Sens. Thom Tillis Thomas (Thom) Roland TillisTillis appears to reinforce question about COVID-19 death toll Billionaire who donated to Trump in 2016 donates to Biden Collins: Winner of presidential election will be sworn in next year MORE (N.C.) and Mike Lee Michael (Mike) Shumway LeeBipartisan representatives demand answers on expired surveillance programs McConnell shores up GOP support for coronavirus package McConnell tries to unify GOP MORE (Utah) — signed a letter to McConnell in May urging him to cancel the August recess.

That raised the eyebrows of fellow Republicans who trekked to the nation’s Capitol amid sweltering heat and humidity.

A spokesman for Lee said his boss “will be in D.C. to vote on appropriations bills next week.”

Democrats mocked Republicans for making a big deal about canceling the August recess and then not showing up for votes.

“Feels a little bit like something that was done for optics rather than for substance. This is called political posturing — I recognize it. I’m in the middle of a campaign,” said Sen. Claire McCaskill Claire Conner McCaskillMomentum growing among Republicans for Supreme Court vote before Election Day Democratic-linked group runs ads in Kansas GOP Senate primary Trump mocked for low attendance at rally MORE (D-Mo.).

Sen. Brian Schatz Brian Emanuel SchatzCDC causes new storm by pulling coronavirus guidance Overnight Health Care: CDC pulls revised guidance on coronavirus | Government watchdog finds supply shortages are harming US response | As virus pummels US, Europe sees its own spike Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE (D-Hawaii) said, “I’m always happy to do the work, but this is a little goofy.”

Updated at 4:03 p.m.