Former Republican Sen. Rick Santorum (Pa.) said on Sunday that President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE’s agreement to temporarily reopen the government without the guarantee of funding for a border wall is a “concession,” but not a “cave.”

Appearing on CNN’s “State of the Union,” Santorum said that criticism of the deal by conservatives, including Fox Business host Lou Dobbs, is an “overreaction.”

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Dobbs said on his show last Friday that the deal announced earlier in the day was a “victory for [Speaker] Nancy Pelosi Nancy PelosiPelosi: Ginsburg successor must uphold commitment to 'equality, opportunity and justice for all' Bipartisan praise pours in after Ginsburg's death Pelosi orders Capitol flags at half-staff to honor Ginsburg MORE [D-Calif.].”

“And to deny it is to try to escape from reality,” Dobbs added.

“The reality is we’ve got three weeks,” Santorum said on Sunday. “We have three weeks, the bill’s in conference. Now they can sit down and strike a deal if they want to strike a deal.”

Santorum then said that he did not think the agreement was a concession “whatsoever” before quickly adding: “I mean, it is a concession, but it’s not a cave.”

“It’s a concession to say, OK, I’ll accept your terms that you wanted in order for us to get a deal. Now let’s see whether you can get a deal,” he added.

“I don’t think it’s a concession whatsoever,” former GOP Sen. @RickSantorum says about President Trump accepting no money for the border wall in exchange for temporarily opening the government. #CNNSOTU https://t.co/dqwALHeQfV pic.twitter.com/uPLxPzRXO5 — State of the Union (@CNNSotu) January 27, 2019

Trump has maintained that his decision to allow the government to fully reopen for three weeks without funding for a wall was not a concession, and that he will declare a national emergency to build one if a bipartisan conference committee doesn't provide funds for it.

“This was in no way a concession. It was taking care of millions of people who were getting badly hurt by the Shutdown with the understanding that in 21 days, if no deal is done, it’s off to the races!” he tweeted Friday.

“We’ll work with the Democrats and negotiate and if we can’t do that, then we’ll do — obviously we’ll do the emergency because that’s what it is. It’s a national emergency,” he told reporters at the White House earlier in the day.