Sen. Lindsey Graham Lindsey Olin GrahamThe Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Senate Democrats' campaign arm announces seven-figure investment to boost Graham challenger Graham: Comey to testify about FBI's Russia probe, Mueller declined invitation MORE (R-S.C.) on Thursday argued the war powers resolution that's designed to serve as a check on a president's military actions was "unconstitutional," remarks that came just hours before the House was scheduled to vote on a similar measure.

"I have said for decades that I believe the War Powers Resolution is unconstitutional," Graham tweeted. "If you don’t like what the Commander in Chief is doing -- cut off funding."

I have said for decades that I believe the War Powers Resolution is unconstitutional.



If you don’t like what the Commander in Chief is doing -- cut off funding. — Lindsey Graham (@LindseyGrahamSC) January 9, 2020

The House is scheduled to vote Thursday on the concurrent resolution, which are typically nonbinding. The War Powers Act of 1973, also known as the war powers resolution, has previously been invoked as a joint resolution.

Graham, who is chairman of the Senate Judiciary Committee, also argued that the Constitution explicitly gives the president, not Congress, the authority to conduct military operations.

“When it comes to commanding the military and directing our forces, we have a single Commander in Chief -- not 535 of them,” he tweeted. “The War Powers Resolution seeks to destroy this balance.”

Graham has been supportive of the president’s recent actions agains Iran. On Thursday, he said Trump’s speech after Iran's attack on Iraqi bases housing U.S. forces would be a highlight of his presidency, comparing it to President Reagan's 1987 speech in Berlin urging Soviet leader Mikhail Gorbachev to "tear down this wall."

Trump tweeted Thursday that he hopes House Republicans will vote against “Crazy Nancy Pelosi Nancy PelosiMcConnell focuses on confirming judicial nominees with COVID-19 talks stalled Overnight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Pelosi must go — the House is in dire need of new leadership MORE’s War Powers Resolution,” calling the legislation “Presidential Harassment.”

On Thursday, Speaker Nancy Pelosi (D-Calif.) promised to hold a House vote at some point on a bill that would repeal the 2002 resolution that empowered the Pentagon to conduct military operations in Iraq.