Reid said “radicals” and “extremists” within the Republican Party are threatening a government shutdown if they insist on defunding ObamaCare in a resolution to fund the government. 

On Friday, the House passed a spending bill that would last through mid-December, but also that defunds the president’s signature healthcare law. Senate Democrats have said that bill will go nowhere.

“The reviews are in and they’re universal that the ransom being demanded by House Republicans to keep the government funded are unacceptable,” Reid said. “Are extremist Republicans really willing to shutdown the government? Only time will tell.”

Reid is planning to advance H.J. Res. 59 in the Senate this week and strip out the language that defunds ObamaCare. That will send the measure back to the House, where it’s unclear whether Speaker John BoehnerJohn BoehnerBoehner on Trump tweets: He gets 'into a pissing match with a skunk' every day Boehner predicts GOP will 'never' repeal, replace ObamaCare Sudan sanctions spur intense lobbying MORE (R-Ohio) will allow the measure to pass.

Lawmakers have to reach a deal by Oct. 1 — the start of the new fiscal year — or else the government will shut down.

Reid said the Senate would move as quickly as "Tea Party Republicans" will allow on passing a spending resolution.

Reid tried to get a unanimous consent agreement to consider a handful of executive branch nominees, but Sen. Ted CruzTed CruzWarren goes to Lincoln Memorial after ObamaCare repeal vote to 'replenish my soul' Krauthammer: Sessions 'is a dead man walking' Scaramucci: We are moving to a ‘freer’ healthcare system MORE (R-Texas) objected. Cruz along with Sen. Mike LeeMike LeeSenate rejects ObamaCare repeal, replacement amendment Trump turns up heat on AG Sessions over recusal GOP senators back Sessions after Trump attacks MORE (R-Utah) have threatened to filibuster the spending resolution if the majority leader removes the ObamaCare language.