President Donald Trump nominated Judge Amy Coney Barrett to the Supreme Court on Saturday, capping a dramatic reshaping of the federal judiciary that will resonate for a generation and that he hopes will provide a needed boost to his reelection effort.

Barrett, a former clerk to the late Justice Antonin Scalia, said she was “truly humbled” by the nomination and quickly aligned herself with Scalia’s conservative approach to the law, saying his “judicial philosophy is mine, too.”

Barrett, 48, was joined in the Rose Garden by her husband and seven children. If confirmed by the Senate, she would fill the seat vacated by liberal icon Ruth Bader Ginsburg. It would be the sharpest ideological swing since Clarence Thomas replaced Justice Thurgood Marshall nearly three decades ago.

She would be the sixth justice on the nine-member court to be appointed by a Republican president, and the third of Trump’s first term in office.

Trump hailed Barrett as “a woman of remarkable intellect and character,” saying he had studied her record closely before making the pick.

Republican senators are lining up for a swift confirmation of Barrett ahead of the Nov. 3 election, as they aim to lock in conservative gains in the federal judiciary before a potential transition of power. Trump, meanwhile, is hoping the nomination will galvanize his supporters as he looks to fend off Democrat Joe Biden.

For Trump, whose 2016 victory hinged in large part on reluctant support from white evangelicals on the promise of filling Scalia’s seat with a conservative, the latest nomination in some ways brings his first term full circle. Even before Ginsburg’s death, Trump was running on having confirmed in excess of 200 federal judges, fulfilling a generational aim of conservative legal activists.

Trump joked that the confirmation process ahead “should be easy” and “extremely noncontroversial,” though it is likely to be anything but. No court nominee has been considered so close to a presidential election before, with early voting already underway. He encouraged legislators to take up her nomination swiftly and asked Democrats to “refrain from personal and partisan attacks.”

In 2016, Republicans blocked Obama’s nomination of Merrick Garland to the Supreme Court to fill the election-year vacancy, saying voters should have a say in the lifetime appointment. Senate Republicans say they will move ahead this time, arguing the circumstances are different now that the White House and Senate are controlled by the same party.

Senate Majority Leader Mitch McConnell said the Senate will vote “in the weeks ahead” on Barrett’s confirmation. Barrett is expected to make her first appearance Tuesday on Capitol Hill, where she will meet with McConnell; Republican Sen. Lindsey Graham, the chair of the Judiciary Committee; and others. Hearings are set to begin Oct. 12, and Graham said he hoped to have Barrett’s nomination out of the committee by Oct. 26.

Senate Democratic leader Chuck Schumer and House Speaker Nancy Pelosi warned that a vote to confirm Barrett to the high court would be a vote to strike down the Affordable Care Act. Schumer added that the president was once again putting “Americans’ healthcare in the crosshairs” even while the coronavirus pandemic rages.

Biden took that route of criticism, as well, framing Trump’s choice as another move in Republicans’ effort to scrap the 2010 health care law passed by his former boss, President Barack Obama. The court is expected to take up a case against it this fall.

The set design at the Rose Garden, with large American flags hung between the colonnades, appeared to be modeled on the way the White House was decorated when President Bill Clinton nominated Ginsburg in 1993.

Barrett, recognizing that flags were still lowered in recognition of Ginsburg’s death, said she would be “mindful of who came before me.” Although they have different judicial philosophies, Barrett praised Ginsburg as a trailblazer for women and for her friendship with Scalia, saying, “She has won the admiration of women across the country and indeed all across the world.”

Within hours of Ginsburg’s death, Trump made clear he would nominate a woman for the seat. Barrett was the early favorite and the only one to meet with Trump.

Barrett has been a judge since 2017, when Trump nominated her to the Chicago-based 7th U.S. Circuit Court of Appeals. But as a longtime University of Notre Dame law professor, she had already established herself as a reliable conservative in the mold of Scalia, for whom she clerked in the late 1990s.