Donald Trump hit back at Republican Senate majority leader John Thune over the latter’s refusal to alter rules to force a vote on the Save America act, a sprawling bill that would upend elections for American voters amid the midterms.

Trump delivered a blunt message for Thune to reporters outside the White House on Wednesday: “He’s got to be a leader.”

The comments came after Trump put on a full-court press over the bill, saying he would not sign any other legislation until the Save America act came to his desk to sign.

While the House approved a version of the bill, the Senate does not have the votes, because it would need 60 votes to move forward because of the filibuster rule. Conservatives who support the bill have pushed for Thune to mandate a so-called “talking” filibuster, which would force Democrats to hold the floor to block the Save America act.

Thune, from South Dakota, said he planned to bring the bill up for a vote next week, but that would mean it would fail – he does not have 60 votes to overcome the filibuster rule and vote on the bill outright, and the talking filibuster isn’t a feasible option.

“We don’t have the votes, either to proceed [to] a talking filibuster nor to sustain one if we got one,” Thune said Tuesday at a press conference. “That’s just a function of math. There isn’t anything I can do about that.”

Thune has said he has to be a “clear-eyed realist” about the bill’s prospects in his chamber.

“We’re going to have the fight on the floor,” Thune said. “We’re going to vote on this. I can guarantee the debate, I can guarantee the vote, I just can’t guarantee an outcome.”

On Wednesday, Trump said it was up to the South Dakota lawmaker to “get them” regardless, referring to the votes he doesn’t have.

Trump’s demands for the Save America act also mean it would have to go back to the House for an additional vote because he wants to add a host of measures not included in the House-passed version, including a ban on mail voting, a ban on gender-affirming surgeries for minors and a prohibition on trans women playing women’s sports.

Some of those new provisions, and some in the existing bill, don’t fly with all Republicans. Thom Tillis, a Republican senator from North Carolina, said he didn’t approve of banning mail voting.

“I don’t want the federal government telling me that I can’t have mail-in voting or absentee ballot voting,” Tillis said, according to Politico. “There’s nothing wrong with mail-in voting if you have the right standards in place.”

Trump has continued hammering on the Save America act and insisting upon its passage while repeating lies that Democrats have been stealing elections and undocumented people are voting in large numbers.

“THE SAVE AMERICA ACT is by far the most popular Bill of its kind ever put before Congress!” he wrote on Truth Social on Tuesday.

Among the provisions of the Save America act: a requirement to provide documented proof of US citizenship to register to vote (such as a passport or birth certificate); a voter ID requirement for casting a ballot; a prohibition on states registering people to vote unless they provide such documentation at the time of registration; requirements for states to ensure only US citizens are registered; a demand that states turn their voter rolls over to the federal government; and an allowance for private parties to sue election officials if anyone registers to vote without presenting documentary proof of citizenship, as well as potential criminal penalties.

The bill would upend elections processes at any time, but would cause particular chaos amid an ongoing election cycle. Midterms are already under way, with several states having already held their primary elections.

Voting rights advocates have said the bill would effectively prevent millions of Americans from voting – only about half have a valid US passport, and other documents, such as birth certificates, may not match up with people’s names. They have called attention to impacts on married women who changed their names whose documents may not be updated, saying the act could cause additional hurdles to voting for them.

The Save America act is playing into midterm elections as conservative activists show their upset at Thune and other Republicans who haven’t cleared the way for the bill.

John Cornyn, the Texas Republican fighting to hold his US Senate seat against state attorney general Ken Paxton, backtracked on his previous support for the filibuster in order to pledge his support for the bill and hopefully secure the president’s endorsement in the process.

In an op-ed published in the New York Post on Wednesday, Cornyn said that Democrats are “weaponizing the Senate’s rules” to block the voter ID legislation from advancing.

“After careful consideration, I support whatever changes to Senate rules that may prove necessary for us to get the SAVE America Act and homeland security funding past the Democrats’ obstruction, through the Senate, and on the president’s desk for his signature,” Cornyn wrote.