Conservatives say there’s enough Republican opposition to scuttle a plan by House GOP leaders to prevent a government shutdown this weekend.

Around half of the roughly 30 members of the hard-right House Freedom Caucus met privately late Tuesday. When they emerged, leader Rep. Mark Meadows, R-N.C., said there are not enough Republican votes to push the GOP leaders’ measure through the House this week with GOP-only support.

The plan by House leaders would temporarily finance government agencies through mid-February. Meadows says conservatives want the measure to allow additional defense spending.

Most Democrats are vowing to oppose the bill. They want the two sides to reach agreement on legislation protecting hundreds of thousands of young immigrants from deportation.