"Just because you have the power to do something doesn't absolve you of your responsibility to do right by the American people," Biden charged in his remarks Sunday afternoon in Wilmington, Delaware.
"Uphold your constitutional duty. Summon your conscience. Stand up for the people. Stand up for our cherished system of checks and balances," he continues.
Since the passing of Justice Ruth Bader Ginsburg earlier this month, Biden has sought to simultaneously appeal to voters that the election should dictate how the rare Supreme Court vacancy should be dealt with, and Republican senators to hold their fire on the highly politicized process until after voters make their wishes known, particularly as early voting has already gotten underway in some states.
"[The] Senate has to stand strong for our democracy. They must not act on this nomination until the American people finish the process they're already begun of selecting their president and their Congress," Biden said.
"[The] U.S. Constitution provides one chance, one, for the Americans to have their voices heard on who serves a lifetime appointment on the Supreme Court, who makes those big decisions about their health care, their civil rights and much else. That chance is now. That moment is now. And the voters, in my view, are not going to stand for this abuse of power" Biden added.
In his remarks, the former vice president focused in particular on the impact Coney Barrett's nomination could have on the Affordable Care Act, and current protections for those with preexisting conditions, as her confirmation would shift the court to a solidly conservative majority of 6-3.
The day after President Trump nominated Coney Barrett to the court in a Rose Garden ceremony, Biden only mentioned the judge's name once and was critical of her public statements on previous Supreme Court rulings upholding the Affordable Care Act, including a 2017 criticism in an article for Notre Dame Law School that Chief Justice John Roberts "pushed the Affordable Care Act beyond its plausible meaning to save the statute," in his 2012 decision.
"The judge... has a written track record -- written track record of disagreeing adamantly with the Supreme Court's decisions on two occasions, upholding the ACA. In fact, not as a judge, but prior to going on the bench, she publicly criticized Chief Justice Roberts' opinion upholding the law, eight years ago," Biden later said of Coney Barrett.
Biden has acknowledged there is very little Democrats can do to stop Senate Majority Leader Mitch McConnell from moving forward with the nomination, and continued to demur on the possibility raised by some Democrats of expanding the Supreme Court if Biden is elected in November, arguing he does not want to pull focus from the issues at hand.
"What I'm not going to do is play the Trump game, which is a good game he plays: take your eye off the issue before us. If I were to say 'yes' or 'no' to that, that becomes a big issue. That's the headline here," Biden said when asked about calls to pack the court.
"American people understand that they're being cut out of this process they're entitled to be part of, and the cutout is designed in order to take away the ACA and your health care in the midst of a pandemic. That's the focus. That's what it's on, and that's the deal," he added.
This report was featured in the Monday, Sept. 28, 2020, episode of “Start Here,” ABC News’ daily news podcast.
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