Confirmation hearings for U.S. Supreme Court nominee Amy Coney Barrett opened Monday in Washington, with Barrett telling senators that courts “should not try” to make policy and should leave that to American presidents and Congress.

Barrett laid out a strict interpretation of the high court’s role, saying it is "not designed to solve every problem or right every wrong in our public life.”

Supreme Court Nominee Barrett: Courts 'Should Not Try' to Make Policy

As the hearings started, Sen. Dianne Feinstein, the lead Democrat on the Senate Judiciary Committee, immediately signaled that the minority Democrats plan to sharply question Barrett about one major policy dispute — her view that a 2012 Supreme Court decision upholding the legality of the Affordable Care Act (ACA), a national health care law affecting millions of Americans, was wrongly decided.

Supreme Court Nominee Barrett: Courts 'Should Not Try' to Make Policy

The court is considering a new challenge to the ACA on Nov. 10, by which time Barrett could be a justice on the nine-member court, deciding whether to overturn the statute or allow it to stand.

Supreme Court Nominee Barrett: Courts 'Should Not Try' to Make Policy

Wearing a black face mask, Barrett listened as senators made their opening statements regarding her nomination, and when they finished, she offered hers.

The stakes for her nomination are high. The Republican-controlled Senate is looking to confirm her appointment just days ahead of the Nov. 3 national presidential election.

In nominating Barrett, Republican President Donald Trump hopes to cement a 6-3 conservative majority on the court before Election Day. His Democratic challenger in the presidential campaign, former Vice President Joe Biden, insists that either he or Trump should make the Supreme Court appointment after the inauguration in January.

“Voting is under way in 40 states,” Feinstein said, adding, “Let the American people be heard” by delaying consideration of a replacement for liberal Justice Ruth Bader Ginsburg, who died last month.

More than 7 million voters have cast early ballots in the presidential election. A Washington Post-ABC News poll showed that 44% of registered voters say the Senate should hold hearings and vote on Barrett’s nomination, while 52% say the nomination should be left to the winner of the presidential election and a Senate vote next year.

In his opening remarks, Republican Sen. Lindsey Graham, chairman of the Judiciary Committee, said the hearings would be “a long, contentious week,” but added, “I think I know how the vote will come out.”

He predicted that all 12 Republicans on the panel would vote for Barrett’s confirmation, with the 10 Democrats uniformly opposed.

Trump complained Monday on Twitter about the Democrats' objections to the nomination.

“The Republicans are giving the Democrats a great deal of time, which is not mandated, to make their self-serving statements relative to our great new future Supreme Court Justice,” Trump tweeted.

Barrett is a devout Catholic, but Biden said Monday her "faith should not be considered. No one’s faith should be questioned.”

Republican leaders say they have enough votes in the full Senate to confirm Barrett’s nomination days before the election, a stance at odds with their position in 2016 when they refused to consider former Democratic President Barack Obama’s nomination of Judge Merrick Garland that came eight months before the presidential election that Trump won.

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“The bottom line is the Senate is doing its job” in considering Barrett’s nomination, Graham said. “I feel we’re doing this constitutionally.”

Republicans say their push to confirm Barrett is in line with 17 of 19 past election-year Supreme Court nominations throughout U.S. history, because the White House and Senate were controlled by the same political party, as is the case now.

Feinstein noted that before Trump named Barrett to a federal appellate court judgeship in 2017, she wrote a law review article contending that Chief Justice John Roberts cast the deciding vote upholding the health care law with what she claimed was contorted reasoning so that the law would remain in effect.

Barrett claimed that Roberts pushed the interpretation of the law “beyond its plausible meaning to save the statute.”

“I hope you will clarify that in this hearing,” Feinstein said in her opening statement. The 48-year-old nominee, however, has declined in conversations with lawmakers in recent days to tip her hand on how she might vote on any case that might come before her if she is confirmed.

The ACA, popularly known as Obamacare, won congressional approval in 2010 over the unanimous opposition of Republicans, who have sought since then to invalidate it.