Conservatives in the House of Representatives issued a stern message to their Senate counterparts today and emboldened them to “start fighting” and pass legislation that rolls back President Obama’s immigration policies.

“It’s high time that Ted Cruz and Mike Lee and others decide that they’re going to start fighting, using the procedural rules in the Senate, and not just looking at the House as the place where the fights are going to happen,” Rep. Raúl Labrador of Idaho said at the monthly Capitol Hill gathering, Conversations with Conservatives. “They also have a responsibility in the Senate to make sure those bills pass.”

The House passed a bill last week to fund the Department of Homeland Security through the end of September. Lawmakers also passed five amendments, including one that repeals the president’s recent immigration executive actions and another that ended Deferred Action for Childhood Arrivals, Obama’s 2012 program known as DACA.

The Republican-controlled Senate plans to take up the legislation. However, there’s doubt that the GOP will be able to secure the 60 votes needed to break a Democratic filibuster. Republicans have 54 seats in the Senate, and Democrats have 44. The two independent senators typically caucus with Democrats.

“It’s high time that Ted Cruz and Mike Lee and others decide that they’re going to start fighting, using the procedural rules in the Senate, and not just looking at the House as the place where the fights are going to happen,” says @Raul_Labrador

Funding for the Department of Homeland Security expires Feb. 27. Though there have been some whisperings of a partial government shutdown should Congress not pass a bill, House conservatives contend that now is the time for the Senate—led by Cruz and Lee—to act and put pressure on the president.

“There’s no way to avoid what’s coming on the 27th,” Rep. Jim Jordan of Ohio said. “We had better stand firm. The American people know it. The Republican voters know it. … We have to stay focused on the issue. What the president did was wrong.”

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At a joint Republican retreat in Hershey, Penn., last week, Sen. John Thune of South Dakota reminded reporters that the “magic number” is 60 votes and expressed skepticism toward the upper chamber’s ability to advance the House-passed Homeland Security bill in its current form.

Labrador said his conservative Senate counterparts previously looked to the House to fight legislative battles, especially in past years when Democrats maintained a majority in the Senate. If the upper chamber chooses not to push back against the president’s immigration policies now, he said, it would be as if Republicans never won the majority of seats in the Senate.

“Last year, the message was, ‘We cannot get our way because we don’t have a majority in the Senate. Now this year, it’s, ‘We cannot get our way because we only have 54 votes. Well, if that’s going to be the attitude from the Senate, then we’re not going to win any battles,” he said.

“We might as well just tell Harry Reid that he can continue to lead the Senate because we were not able to get 60 votes in the Senate,” Labrador continued. “That’s not leadership. That’s not what the American people are expecting from us. That’s not why they voted for a Senate majority.”

With just over a month to go before Homeland Security funding expires, the lawmakers said they were looking for a Republican senator to stand up and lead the fight against the president and Democrats. Rep. Matt Salmon of Arizona referenced Sen. Rand Paul’s, R-Ky., 13-hour filibuster in 2013, in which he protested the president’s drone policy, as an example of how the GOP can take a stand.

“It’s time for us all to be doing everything we possibly can to force the president to do things in a constitutional way, and it’s not just the job of the House. It’s the job of the Senate, too,” Salmon said. “One person over there can bottle up the whole place. I’m anxiously waiting to see how they’re going to do it.”

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