More than a dozen senators missed Monday night votes, despite a lecture last week from leadership about skipping work during the rare August session.

Fifteen senators — five Democrats and 10 Republicans — did not show up for two votes in the Senate.

The Senate voted on two amendments to a massive Defense, Health and Human Services, Labor and Education bill. Both proposals were approved 85-0, meaning even if lawmakers had shown up, they wouldn't have changed the outcome of the vote.

Asked on Monday how many members would show up this week, Senate GOP Whip John Cornyn John CornynQuinnipiac polls show Trump leading Biden in Texas, deadlocked race in Ohio The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Liberal super PAC launches ads targeting vulnerable GOP senators over SCOTUS fight MORE (Texas) quipped before the votes: "enough."

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But the drop in attendance comes after 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.) lectured Republicans during a closed-door lunch about poor attendance during a truncated two-day session last week.

McConnell warned GOP senators on Thursday that without a boost in attendance he would have trouble moving legislation. With Republicans having a slim 51-49 hold on the Senate, the absences effectively make Democrats the majority.

“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, told The Hill last week.

Though Monday evening votes routinely see more senators absent, the 15 missing is a bump in the number absent compared to the four votes last week.

Eleven senators missed Wednesday's vote last week. Ten senators missed two votes that were scheduled for Thursday before lunch, while 11 missed the one vote the Senate held on Thursday after closed-door caucus lunches.

Most of the absences last week were by Republicans, 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 battling brain cancer and has been undergoing treatment in Arizona for months.

The drop in attendance comes after McConnell canceled most of the chamber's summer recess, keeping the Senate in for a rare August session.

GOP leadership faced pressure from both conservatives and the White House to stay in town amid growing frustration about the slow pace of confirmation votes for nominees, and warnings from Trump that he would not sign another omnibus bill ahead of next month's government funding deadline.