Rep. Marjorie Taylor Greene (R-GA) slammed Republican Senate leadership Friday for its refusal to utilize a filibuster workaround in the party’s squabble with Democrats amid the ongoing government shutdown, now in its third day.

The government shut down on Wednesday after lawmakers failed to pass a spending bill by an Oct. 1 deadline, a failure sparked by disagreements over extending Affordable Care Act subsidies. The House managed to pass a temporary funding bill on Sept. 19, though it stalled in the Senate, having come up short of the 60-vote threshold needed to avoid a filibuster.

Greene, however, speaking on Infowars, argued that Senate Majority Leader John Thune (R-SD) needed to “grow a spine” and utilize what’s commonly referred to as the “nuclear option.”

“We need to be passing Republican appropriation bills, and the Senate can get it through to the president's desk by using the nuclear option; they can use the nuclear option on any piece of legislation, overriding the 60-vote rule and helping legislation get to President [Donald] Trump's desk to make it a law,” Greene said.

“I believe that Thune and the Republican senators need to actually grow some courage and a spine. They need to use the nuclear option!”

The so-called “nuclear option” allows for legislative leadership to change or eliminate a filibuster requirement on a particular measure or set of measures, allowing for bills, nominations or other procedural measures to pass with a simple majority, which, in the Senate’s case, would be a vote threshold of 51.

The procedural measure has been utilized several times over the past few decades, including in 2017 when Senate Republicans lowered the vote threshold to approve Trump’s Supreme Court nominations, or in 2013 when Senate Democrats lowered the vote threshold to approve former President Barack Obama’s judicial nominations.

“Everything you voted for, going forward, is temporary right now until Congress uses its constitutional power and learns how to govern and actually use power like the Democrats have,” Greene said. “I support President Trump, I campaigned for him very hard, but I am frustrated at the fact that we aren't passing bills to make his policies permanent.”