A group of conservative House Republicans on Wednesday pressed Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Senate GOP aims to confirm Trump court pick by Oct. 29: report Trump argues full Supreme Court needed to settle potential election disputes MORE (R-Ky.) to gut the filibuster as the GOP prepares to take control of Congress.

A 60-vote threshold on legislation and nominees in the Senate will be a key tool for Democrats looking to thwart the agenda of Republicans and President-elect Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE in the new Congress.

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So far, no Senate Republican has advocated for changing Senate rules for passing legislation since Trump pulled an upset in last week’s presidential election.

But many House GOP lawmakers at a “Conversations with Conservatives” event moderated by the Heritage Foundation argued it gives Democrats unfair leverage.

Rep. Matt Salmon Matthew (Matt) James SalmonCOVID-19's class divide creates new political risks Arizona voters like Kyl but few think he'll stick around Former Sen. Jon Kyl to replace McCain in Senate MORE (R-Ariz.) invoked the popular movie “Mr. Smith Goes to Washington” and argued the 60-vote threshold is often a crutch to avoid tough votes.

“Actually make these people come down to the floor, just like in ‘Mr. Smith Goes to Washington,’ and actually filibuster on the floor,” Salmon said. “So the guys filibustering can show America what a bunch of idiots they truly are.”

Senate Democrats invoked the so-called nuclear option three years ago to eliminate filibusters for most judicial nominees and executive-office appointments, requiring a vote by a simple majority instead of the 60-vote supermajority.

Rep. Raúl Labrador (R-Idaho) called for lowering the threshold for all judicial appointments, which would include the Supreme Court, to a simple majority.

“I would do away with a filibuster for judges in general,” he said.

Senate Republicans have refused to consider President Obama’s appointment of Merrick Garland to fill Justice Antonin Scalia’s seat on the Supreme Court, leaving the seat open for Trump to tap a replacement.

But Republicans are divided over calls to change the Senate's rules.

One lawmaker on the panel, Rep. Thomas Massie (R-Ky.), defended keeping the filibuster in place.

“It would be foolish to get rid of the filibuster,” Massie said. “You’ll find very few Republican senators who want to get rid of the filibuster ... to spend money in the Senate takes 60 votes. What conservative would want to lower the threshold to spend money down to 51?”

It’s not the first time House conservatives have pressured McConnell to invoke the nuclear option.

Last year, they urged McConnell to change the Senate’s rules to pass a bill defunding President Obama’s executive actions shielding certain illegal immigrants from deportation.