WASHINGTON — Congressional leaders were digging in Wednesday for a fight over government funding, a day after a combative White House meeting with President Donald Trump that seemed to raise the likelihood of a partial government shutdown.

Senate Democratic leader Chuck Schumer said Trump was holding parts of the government “hostage to a petty campaign pledge” to build a border wall with Mexico to “fire up” his political base.

Republican leaders, meanwhile, said they have the votes in the House to approve Trump’s request for $5 billion for the southern border wall in a must-pass spending bill — but weren’t sure they wanted to bring it up with no assurance that the plan could get the necessary 60 votes in the Senate.

The burden “is on the Senate to negotiate what they can get with 60 votes,” said Rep. Patrick McHenry, R-N.C., a member of House leadership and a key vote-counter.

“It is my hope and it’s my thought that the Senate should work this thing out,” McHenry said.

That appeared unlikely Wednesday, as Democrats reiterated their opposition to spending more than $1.6 billion on border security and Republicans urged Trump to remain steadfast.

“This is a fight we’re going to have. He needs to dig in and not give in,” said Sen. Lindsey Graham, R-S.C., a key Trump ally.

Sen. John Kennedy, R-La., said the central question is, “Who’s going to give? The president doesn’t look to me like he’s going to budge. I don’t think he’s bluffing.”

Kennedy said House Democratic leader Nancy Pelosi appeared to be calling the shots for Democrats, “and she’s not going to make any concessions because she wants to be the next speaker.”

The funding fight is something leaders of both parties had hoped to avoid as Congress seeks to wrap up its work for the year and adjourn for the holidays. But Trump, who for months had suggested he’d be willing to force a shutdown over wall funding, dashed hopes for a quick resolution on Tuesday, sparring with Pelosi and Schumer during an extraordinary Oval Office meeting that he made sure played out in front of television cameras.

Trump told the Democrats he will be “proud to shut down the government” in the name of border security, declaring: “I will take the mantle. I will be the one to shut it down.”

Schumer said the American people will “suffer needlessly” if Trump follows through on his threat to shut down parts of the government as of Dec. 21 unless he receives the $5 billion he is demanding.

On Twitter on Wednesday, Trump said a deadly shooting attack in France shows the need for the border wall.

“Chuck and Nancy must give us the votes to get additional Border Security!” he wrote, referring to Schumer and Pelosi.

But the suspect accused of spraying gunfire at a Christmas market in the city of Strasbourg on Tuesday is a French native, not an immigrant. Police were hunting Wednesday for Cherif Chekatt, born in Strasbourg and well-known to law enforcement.

Meanwhile, House Republicans debated whether to try to pass the wall funding to put pressure on Democrats, but it was far from clear if that plan would succeed. With many Republicans who lost bids for re-election or retired staying away from the Capitol, finding enough GOP votes to approve the wall remained a steep challenge.

House Majority Leader Kevin McCarthy, R-Calif., said House leaders were “working through” the funding bill.