On Monday, the court denied their request to hear arguments to overturn Texas' election law limiting no-excuse mail-in voting to voters who are 65 years of age or older.
"The Democrats were trying to argue basically that because we allowed people over 65 to vote by mail, that that meant that there was discrimination of people under 65 for not letting them vote by mail," explains Christine Welborn, president of Advancing Integrity, an organization that strives for accountability, transparency, and accuracy in U.S. elections.
Lower courts have rejected the Democrats' claims multiple times.
"They were trying to make it so that they could have universal vote by mail, which is what they're trying to pass really across the country," Welborn notes.
She calls the Supreme Court's rejection a great victory.
"We need to have fewer people voting by mail," she contends. "Voting by mail should be reserved for people who absolutely need it, because there're so many vulnerabilities that are associated with it. Also, the only place that you can really safely, securely, and secretly vote is inside a polling location."
Welborn says anyone who is able should be voting in person because that method is less vulnerable to fraud.