Michael Reagan, a son of former President Ronald Reagan, urged President Donald Trump to stand firm on pushing for border security wall funding the day before the government shut down because Democrats refused to fund the wall — warning that it’s “now or never.”

With less than two weeks to go until House Minority Leader Nancy Pelosi (D-Calif.) presumably becomes House speaker as a new Democratic majority takes over, Trump is fighting hard to pass border wall funding while the GOP still controls Congress.

The president threatened a partial government shutdown over border security two weeks ago during a contentious Oval Office meeting with Senate Minority Leader Chuck Schumer (D-Calif.) and Pelosi.

Although Trump appeared to waver briefly in favor of keeping the government open and funded, he doubled down last Thursday as the House considered a bill without wall funding.

The House ultimately passed a stopgap bill with $5 billion for the border wall last Thursday.

The Senate, which passed a budget without border wall funding earlier, failed to garner enough votes this past Friday for a budget bill with border wall funding.

The Senate will reconvene on Thursday to tackle the funding stalemate and attempt to reach an agreement.

But the former president’s son, Michael Reagan, urged Trump to continue pushing for border wall funding in the face of staunch Democratic resistance to the idea of securing the border.

“Hey @POTUS in 1986 my father made a deal with the Democrats Amnesty for Border Security my father is still waiting.U have no choice its now or never … #BuildTheWallNow,” Michael Reagan tweeted at Trump.

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Michael Reagan was referring to the Immigration Reform and Control Act of 1986, which allowed illegal immigrants present in the U.S. since 1982 to remain legally in the country and become eligible for green cards provided they learned English.

Although the bill tried to boost border security and immigration enforcement measures, it did not include border wall funding.

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Trump took to Twitter late Sunday night to push once more for border wall funding in the budget, writing, “The most important way to stop gangs, drugs, human trafficking and massive crime is at our Southern Border. We need Border Security, and as EVERYONE knows, you can’t have Border Security without a Wall. The Drones & Technology are just bells and whistles. Safety for America!”

Trump called out liberals for their hypocrisy Saturday on Twitter, as well, following the outcry against his decision to withdraw U.S. troops from Syria.

“I won an election, said to be one of the greatest of all time, based on getting out of endless & costly foreign wars & also based on Strong Borders which will keep our Country safe. We fight for the borders of other countries, but we won’t fight for the borders of our own!” Trump tweeted.

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