Voting rights 'a fight' of Biden's presidency -WH

"This will be a fight of his (Biden's) presidency," Psaki said on Monday (June 21).

Democrats in the Senate this week will try to advance legislation setting new national election standards, seeking to counter voting-rights rollbacks that Republican legislatures are pursuing across the country.

White House and civil rights groups say the Republican-led efforts would make it harder for Americans to vote. It follows Republican former President Donald Trump's false claim that he lost the 2020 election to Biden because of widespread fraud.

Republican Minority Leader Mitch McConnell, who has led his party in the Senate without opposition since 2007, has vowed to use the filibuster this week for the third time in a month to prevent debate on the measure, which is intended to enhance voter access to the polls ahead of the 2022 midterm elections.

"The Senate will finally get the opportunity to vote on the bill that House and Senate Democrats have both made their number one priority for the entire Congress," said McConnell, a 79-year-old Kentucky Republican who has described himself as "100%" focused on stopping the Biden administration. "The Senate will reject it."

A compromise plan offered by moderate Democratic Senator Joe Manchin, which Democrats could advance as an alternative, is unlikely to fare any better.