WASHINGTON (AP) — House Speaker Mike Johnson is heeding the demands of the more conservative wing of his Republican conference and has teed up a vote this week on a bill that would keep the federal government funded for six more months and require states to obtain proof of citizenship, such as a birth certificate or passport, when registering a person to vote.

Congress needs to approve a stop-gap spending bill before the end of the budget year on Sept. 30 to avoid a government shutdown just a few weeks before voters go the polls and elect the next president.

Johnson’s decision to combine the proof of citizenship mandate with government funding complicates prospects for getting that task done. The bill is not expected to go anywhere in the Democratic-controlled Senate, if it even makes it that far.

But the effort could help Johnson, R-La., next year should House Republicans retain their majority and he seeks to become speaker again. The vote also could give Republicans an issue to go after Democrats in competitive swing districts as Republicans make immigration-related matters a campaign cornerstone.

“Today, House Republicans are taking a critically important step to keep the federal government funded and to secure our federal election process,” Johnson said Friday. “Congress has a responsibility to do both, and we must ensure that only American citizens can decide American elections.”

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Democrats will oppose the GOP effort overwhelmingly and warn that any continuing resolution must have buy-in from both political parties. They said Johnson was making the same mistake then-Speaker Kevin McCarthy, R-Calif., did a year ago as he tried to placate conservatives. In the end, they rejected his efforts, forcing him to rely on Democrats to get a temporary spending bill passed. That fight led just a few days later to eight Republicans joining with Democrats in removing McCarthy from the speaker’s job.

“As we have said repeatedly, avoiding a government shutdown requires bipartisanship, not a bill drawn up by one party. Speaker Johnson is making the same mistake as former Speaker McCarthy did a year ago, by wasting precious time catering to the hard MAGA right, Democratic Sens. Chuck Schumer of New York and Patty Murray of Washington state said in a statement, referring to Donald Trump’s “Make America Great Again” movement. “This tactic didn’t work last September and it will not work this year either.”

They said that if Johnson “drives House Republicans down this highly partisan path, the odds of a shutdown go way up, and Americans will know that the responsibility of a shutdown will be on the House Republicans’ hands.”

Schumer is the Senate’s majority leader. Murray leads the Senate Appropriations Committee.

The voter registration measure is popular with House Republicans. The House Freedom Caucus, which generally includes the chamber’s most conservative members, called for it to be attached to a stop-gap bill that would keep the government funded into early 2025.

Republicans say that requiring proof of citizenship would ensure U.S. elections are only for American citizens, improving confidence in the nation’s federal election system, something that Trump has sought to undermine over the years.

Opponents say it is already against the law for noncitizens to vote in federal elections and that the document requirements would disenfranchise millions of people who do not have the necessary documents readily available when they get a chance to register, say at a concert, county fair or at a college voter registration drive.

In an earlier vote on the voter registration bill, Republicans unanimously backed it while all but five Democrats voted against it. President Joe Biden’s administration strongly opposed that measure, saying the the alleged justification for the bill is easily disproven.

Some Republicans are arguing that if Schumer will allow a vote, assuming the bill passes the House, then a government shutdown would be on him.

“If Chuck Schumer decides he doesn’t want to bring it, then Chuck Schumer will be deciding that he wants to shut down government. It’s not us,” said Sen. Rick Scott, R-Fla., during an interview on Fox Business News.

Trump and other Republicans have revved up their complaints about the issue of noncitizens voting with the influx of migrants across the U.S.-Mexico border under Biden’s administration. They are contending Democrats let them in to add them to the voter rolls. But the available evidence shows that noncitizen voting in federal elections is incredibly rare.

Another major question to address as part of the short-term spending bill is how long to extend funding. Before the August recess, House Appropriations Committee Chairman Tom Cole, R-Okla., said he preferred that the next president be able to pursue top priorities without the distraction of a messy spending fight.

But the House Freedom Caucus is banking on Trump winning the White House and putting the GOP in better position to secure the spending cuts and policy priorities they desire. So they want to extend funding until after the inauguration in January.

Congress returns to Washington on Monday after spending the past five weeks back in their home states and districts. The short-term bill is necessary because the House and Senate are nowhere near completing their work on the dozen annual spending bills that keep government agencies and programs operational during the coming budget year.

So far, the House has passed five of the 12 annual spending bills, while the Senate has passed none, though the Senate has opted to take a more bipartisan approach to the challenge by moving 11 of the bills through the Senate Appropriations Committee with broad support from lawmakers in both parties. Meanwhile, Republicans in the House are using their majority to push bills through with the vast majority of Democrats in opposition.