WASHINGTON (AP) — The Senate is set to pass a spending bill to prevent the government from shutting down this week over the opposition of the most conservative Republicans in the chamber.

Tuesday's expected vote comes after a 77-19 tally on Monday easily beat a token filibuster threat. The House is then expected to approve the measure — stripped of a tea party-backed measure to take taxpayer funding away from Planned Parenthood as the price for keeping the government open — before Wednesday's midnight deadline.

Senate Majority Leader Mitch McConnell of Kentucky is under fire from tea party conservatives who demand that he fight harder against Planned Parenthood even at the risk of a government shutdown, but McConnell is more concerned with protecting his 2016 re-election class.

Last week, Democrats led a filibuster of a Senate stopgap measure that would have "defunded" Planned Parenthood. Eight Republicans did not support that measure, leaving it short of a simple majority, much less the 60 votes required to overcome the filibuster.

The pending measure is "the only viable way forward in the short term," McConnell said. "It doesn't represent my first, second, third or 23rd choice when it comes to funding the government, but it will keep the government open through the fall."

Republicans have targeted Planned Parenthood for years, but the release of secretly recorded videos that raised questions about its handling of fetal tissue provided to scientific researchers has outraged anti-abortion Republicans and put them on the offensive in their efforts against the group. The group says it is doing nothing wrong and isn't violating a federal law against profiting from such practices.

Sen. Ted Cruz, R-Texas, who is using his rivalry with GOP leaders like McConnell and House Speaker John Boehner, R-Ohio, as a way to define himself among conservative voters who dominate the GOP presidential primary electorate, took to the Senate floor after the vote Monday to attack them.

"You want to understand the volcanic frustration with Washington? It's that the Republican leadership in both houses will not fight for a single priority that we promised the voters we would fight for when we were campaigning less than a year ago," Cruz said.

The White House weighed in Monday with a statement endorsing the measure since it would allow "critical government functions to operate without interruption, providing a short-term bridge to give the Congress time to pass a budget for the remainder of the fiscal year."

The Planned Parenthood fight helped topple Boehner, who announced his resignation last week after informing several conservatives that he would not use the must-pass spending measure to take on the group.

The measure now before the Senate would keep the government's doors open through Dec. 11, but the battle is sure to be rejoined then — at a potentially greater risk of a shutdown.

Boehner said Sunday the House would take up the Senate bill and also look at a select committee to investigate the Planned Parenthood video. The stopgap measure would require Democratic votes to pass.

"I expect my Democrat colleagues want to keep the government open as much as I do," Boehner said on CBS' "Face the Nation."