The remarks are ammo for GOP critics trying to draft a conservative to challenge him.
The campaign believes California Republican McCarthy made a serious blunder.
The president has issued a veto threat over defense and nondefense spending levels.
Pelosi said McCarthy’s comments show the panel is “unethical” and should be dismantled.
The new Speaker could become the next victim of GOP “fratricide.”
The stopgap spending bill lasts only through December.
"We passed 300 bills this year," the majority leader said.
Conservatives had hoped Rep. Trey Gowdy would enter the majority leader race.
The Armed Services panels are ready to move the National Defense Authorization Act forward.
Gowdy's entrance would add a dynamic, high-profile candidate to the race.
"We're going to get closer to the people we represent," McCarthy said.
His resignation adds a dash of uncertainty to a scramble on a host of policy matters.
Races for the top House Republican leadership spots take shape.
He is promising to heal divisions in the fractious GOP conference.
The new dynamic will almost certainly complicate life for Obama and McConnell.
Boehner said he would've won an election to keep the Speakership.
Boehner's friends are furious with conservatives for pushing the Speaker aside.
Rep. Daniel Webster unsuccessfully challenged Boehner for the gavel in January.
The Democratic whip said Boehner's resignation would heighten partisan gridlock.
Boehner says Kevin McCarthy would make an excellent Speaker.