WASHINGTON — Senate Democrats came to the first day of the Supreme Court hearings Monday with a singular message: Health care coverage and protections for millions of Americans are at risk if Amy Coney Barrett is confirmed.

Like a choir singing in unison, Democrats carried the same tune, in different vocal ranges. Each showed photos of constituents who have battled illness and stand to lose potential lifesaving treatment if the Affordable Care Act were axed, demonstrating an unusual level of harmony for a party not known for message discipline.

The relentless attacks were aimed at exploiting the GOP's Achilles' heel in the election — a pandemic-weary public that continues to cite health care as a top issue and trusts Democrats more on the topic. Without the votes to stop Republicans from confirming Barrett, 48, to a lifetime appointment on the court, Democrats are seeking to maximize their revenge at the ballot box.