WASHINGTON — President Joe Biden on Tuesday urged Congress to pass a bipartisan package of border security measures and asylum restrictions and blamed former President Donald Trump for being behind the effort to tank it on the Senate floor.

In remarks from the White House, Biden called the bill “the most fair, humane reforms in our immigration system in a long time and the toughest set of reforms to secure the border ever.”

He continued, “Now, all indications are this bill won’t even move forward to the Senate floor. Why? A simple reason: Donald Trump. Because Donald Trump thinks it’s bad for him politically.”

Biden said that Trump would “rather weaponize this issue than actually solve it.” He said that he’s been told that for the last 24 hours, Trump has done nothing but reach out to Republicans in the House and Senate “and threaten them and try to intimidate them to vote against this proposal.”

“Looks like they’re caving,” Biden said. “Frankly, they owe it to the American people to show some spine, and do what they know to be right.”

The Senate is expected to take a procedural vote Wednesday that will require 60 votes to advance the measure, which also includes aid to Ukraine, Israel and Taiwan. But Republican senators left a closed-door meeting Monday night predicting that the chamber wouldn’t have enough GOP votes to move forward with the bill, even after their chief negotiator signed off on the deal on Sunday.

“I would anticipate Wednesday the cloture vote does not pass,” Sen. James Lankford, R-Okla., the lead GOP negotiator in the border talks, told reporters after the meeting. “People are saying, ‘Hey, I need a lot more time to be able to go through this.'”

On Tuesday, Senate Republican Conference Chairman John Barrasso, the third highest-ranking member of his caucus, came out against the deal, saying, “The proposed legislation does not meet most Americans’ standard of securing our border now.”

House Republican leaders said that the legislation is “dead on arrival” in the lower chamber and former President Donald Trump has been urging lawmakers from his party to tank it, saying that it would be a “gift” to Biden and Democrats in an election year.

“I cannot vote for this bill,” said Barrasso, the highest-ranking Senate Republican to endorse Trump for president this cycle. “Americans will turn to the upcoming election to end the border crisis.”

Since the beginning of his administration, Biden has called on Congress to pass legislation to address the nation’s broken immigration system. The deal that Lankford negotiated came after Republicans said they would only agree to pass funding for Ukraine, Israel and Taiwan, as requested by the administration, if Biden agreed to tougher border security measures.

“I don’t want to predict the demise of the bill, but I will say it was their demand that we included border security, and we did. And it was their demand that James Lankford be the lead negotiator, and we worked with that,” Sen. Brian Schatz, D-Hawaii, a Democratic leadership member, said in an interview.

Schatz said that if Republicans kill the compromise they insisted on, Democrats will hold them responsible for border problems with the American public ahead of the 2024 election.

“We made a lot of accommodations … because we think this national security supplemental is essential for freedom and democracy across the planet. But one day Donald Trump woke up and decided to kill it and everyone is obeying him,” Schatz said. “So it is going to be very difficult for them to tell their voters why they voted against border security, especially when they’ve been specifically demanding it in this bill.”

Meanwhile, House Republican leaders are planning to hold a vote Tuesday on a standalone Israel aid bill, which will require a two-thirds majority to pass. It faces an uphill climb due to opposition from House conservatives, fierce criticism from Democratic leadership and a veto threat from Biden.

Johnson told reporters that Israel and Ukraine funding should be dealt with “independently and separately,” while giving no indication that Ukraine aid has a path. He said Republicans want more details from the administration on the endgame for Ukraine, but insisted: “That’s not been abandoned.”

This article was originally published on NBCNews.com