You would be forgiven if you thought Reps. Marjorie Taylor Greene and Lauren Boebert—last seen calling each other “bitch” on the floor of the chamber—were the dumbest Republicans in the House.

You wouldn’t be wrong to think Reps. Paul Gosar and Matt Gaetz ranked near the top, or any of the rest of the Freedom Caucus nihilists—like Chip Roy, Andrew Clyde, or even serial pathological liars like Reps. George Santos, Anna Paula Luna, or Andy Ogles.

But no, those aren’t the dumbest Republicans in the House.

The dumbest Republicans in the House are those who voted to impeach President Joe Biden, despite representing Biden districts. Their political fate already in jeopardy, they just threw away their reelection chances for a meaningless Boebert gesture. RELATED STORY: Republican disarray is somehow, miraculously, getting worse

Eighteen Republicans currently represent districts carried by Biden in 2020. They were either beneficiaries of low turnout in California and New York, or sitting incumbents who pulled off reelection thanks to midterm dynamics. In a sane world, they would be finding ways, the way Blue Dog Democrats do, to cast key votes against their leadership, thus building a narrative of “independence” they could sell to voters come election time.

Here are those 18 House Republicans that represent districts won by Biden, with the president’s margin of victory, courtesy of Daily Kos Elections:

• Juan Ciscomani (AZ-6), Biden +0.1

• Nicholas LaLota (NY-1) +0.2

• David Schweikert (AZ-1) +1.5

• Jen Kiggans (VA-2) +1.9

• Young Kim (CA-40) +1.9

• Thomas Kean Jr. (NJ-07) +3.9

• Brian Fitzpatrick (PA-1) +4.6

• Marcus Molinaro (NY-19) +4.6

• Michelle Steel (CA-45) +6.2

• Don Bacon (NE-2) +6.3

• Brandon Williams (NY-22) +7.5

• George Santos (NY-3) +8.2

• Lori Chavez-DeRemer (OR-5) +8.9

• Michael Lawler (NY-17) +10.1

• John Duarte (CA-13) +10.9

• Mike Garcia (CA-27) +12.4

• David Valadao (CA-22) +12.9

• Anthony D’Esposito (NY-4) +14.5

Remember, the current Republican House majority is just nine seats, meaning that Democrats only need to flip five to regain the majority. It’s a target-rich environment, even before drilling down into Republican-held seats in narrow-Trump districts. Abortion, issues of freedom, and the improving economy are all conspiring to make the Republican hold on the House tenuous at best.

A smart caucus wouldn’t just spare these Biden-district Republicans tough, unpopular choices, but would openly give them opportunities to vote against their leadership. Legendary House Speaker Nancy Pelosi was a master of this, giving tough-district Democrats the opportunity to vote and rail against her. But it was all political theater: When she needed their votes, they delivered.

McCarthy isn’t as witless as this bunch. He would offer similar opportunities if he could. But it’s not up to him. It’s up to Donald Trump and his MAGA acolytes, none of which brook any dissent. You might think, “well, isn’t the dumb one Trump, for not giving those Republicans the ability to pretend to be independent?” Well, no! Trump doesn’t care about the Republican Party. All he cares about is his own power and self-aggrandizement. He’s actually playing the game smart, forcing those blue-district suckers to bend the knee, kiss his ring, and vote for their own political demise. Same with McCarthy: His speakership hangs on a thread, and he’s doing what he needs to do for his own political survival. He clearly has no interest in Republicans retaining the House if he’s not the one in charge.

This is why Thursday’s Boebert impeachment vote was so incredibly stupid. It has zero chance of passing, the Senate would dispose of it in two seconds if it did, and there’s no plausible reason for it other than retaliation. Republicans, desperate for anything on which to hang their efforts, have found nothing. Remember all the explosive revelations from the Hunter Biden hearings? No? Me neither. Nor does anyone else, because there were none. An impeachment effort without any hint of underlying crime would be such a calamitous disaster for Republicans, it’s amazing they don’t see the danger signs. The last thing Republicans need heading into 2024 is yet another reason for voters to hate them—not that that’s ever stopped them before.

RELATED STORY: House Republicans desperately seeking reason to impeach Biden

And yet every single one of those Biden-district Republicans voted to impeach Biden. Well, they voted to refer the impeachment to the Judiciary Committee, but good luck explaining that distinction to voters. The correct vote was to squash the effort dead.

Thing is, we’ve seen that resisting Trump can be smart politics, particularly in areas where college-educated suburban voters are a key swing vote. Look at Georgia, where Gov. Brian Kemp and Secretary of State Brad Raffensperger both won reelection easily in the face of Trump’s fury. It wouldn’t be inconceivable for these Biden-district Republicans to win reelection by playing the same game. Sure, they’d still have to survive primary challenges, but they’d likely have better chances there than being reelected in a general election in most of these blue seats.

Voting with the Freedom Caucus nihilists is political suicide, and the fact that these 18 don’t seem to see this is bad enough. But voting to impeach the president that the voters in their district voted for? That’s a whole ‘nother level of idiocy.

Joining us on "The Downballot" this week is North Carolina Rep. Wiley Nickel, the first member of Congress to appear on the show! Nickel gives us the blow-by-blow of his unlikely victory that saw him flip an extremely competitive seat from red to blue last year—including how he adjusted when a new map gave him a very different district, and why highlighting the extremism of his MAGA-flavored opponent was key to his success. A true election nerd, Nickel tells us which precincts he was tracking on election night that let him know he was going to win—and which fellow House freshman is the one you want to rock out with at a concert.