Senate Minority Leader Chuck Schumer publicly threatened to challenge the Trump administration in court this week, saying the White House would face “years” of lawsuits should President Trump push to have the U.S. military partially fund his signature campaign promise: The border wall.

According to the Washington Post, the President is is considering pursuing other sources of funding for the border wall following last week’s omnibus spending bill, which failed to fund the physical barrier and find a permanent solution for DACA-recipients.

Schumer immediately threw cold-water on the Commander-in-Chief’s attempt to sideline the Congressional stalemate, saying any attempt to bypass the Senate would be “tied up in court for years.”

“First Mexico was supposed to pay for it, then U.S. taxpayers, and now our men and women in uniform?” said the Democratic leader. “This would be a blatant misuse of military funds and tied up in court for years. Secretary Mattis ought not bother and instead use the money to help our troops, rather than advance the president’s political fantasies.”

The President pushed-back against “obstructionist” Democratic lawmakers shortly after signing the $1.3 trillion spending package; saying the liberal legislators have “totally abandoned” the nation’s ‘Dreamers.’