Rep. Mo Brooks Morris (Mo) Jackson BrooksOvernight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' OVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals,' official says MORE (R-Ala.) said he would not support Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellGraham: GOP will confirm Trump's Supreme Court nominee before the election Trump puts Supreme Court fight at center of Ohio rally The Memo: Dems face balancing act on SCOTUS fight MORE (R-Ky.) if he’s elected to the Senate.

In an interview with reporters Wednesday on immigration, Brooks took the opportunity to rail against McConnell's leadership and Sen. Luther Strange (R-Ala.), whom he is hoping to unseat in the Republican primary for former Sen. Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE’s spot in the chamber.

"Inside the Republican Conference, Mitch McConnell has got to go," Brooks said. "He is the head of the swamp in the U.S. Senate."

Brooks's distaste for McConnell likely stems from the fact that the majority leader has thrown his weight behind Strange, who was appointed to fill the seat vacated by the attorney general in the months before the special election.

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McConnell has told groups such as the National Republican Senatorial Committee to treat Strange as the incumbent, a designation that gives him a major leg up on fundraising and organizational muscle, considering the NRSC has a policy to blacklist vendors that work with candidates challenging their incumbents.

The Senate Leadership Fund, the de facto super PAC of GOP Senate leadership, has already hammered Brooks with a $2.5 million ad campaign that brings up Brooks's criticisms of Trump during the 2016 GOP presidential primary. The group has budgeted up to $10 million for the race. And the NRSC has the green light to spend $350,000 on Strange's behalf.

Brooks has decried that push, seeking to frame the investments as Washington interests meddling in Alabama's elections. He's long blasted the SLF as "swamp critters" in hopes of echoing Trump's "drain the swamp" mantra.

"This primary, to sum it up succinctly, everybody in this room is familiar with Donald Trump, candidate, pledging that as President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE he would try to drain the Washington swamp.

"In this Senate race, the swamp is fighting back, and the swamp’s candidate is Luther Strange," Brooks said.

He added that Strange was certain to support McConnell if reelected, as well as the Senate's 60-vote filibuster rule.

"This is a major battle. If the American people want to continue with the kind of frustration … we’ve seen over the last six months where the Republicans have the House and Senate and the White House and can’t address these major issues, the reason for it is the 60 percent rule in the Senate. That is a major definitional point between my campaign and Luther Strange’s," he said.

Brooks also questioned Trump's allegiance to his own campaign promises, zeroing in on the president's recent attacks on Sessions.

"It reminds me of the kinds of public statements we saw before [former FBI Director James] Comey was terminated," Brooks said.

"The respect for Jeff Sessions is so great that I’m sure if President Trump were to fire or embarrass Jeff Sessions into quitting, that a lot of President Trump voters, particularly in the primary, will have mixed feelings about what is going on," he added.

Earlier this week, Brooks released a controversial ad that uses audio from the June shooting that injured House Majority Whip Steve Scalise (R-La.).

Some in Scalise’s camp slammed the ad as an attempt to use the shooting for political gain, further widening the rift between Brooks and GOP leadership.