to president biden's first congressional address last year. there's some speculation the senator may run for president in 2024. we should note no republicans have come on record saying they'll support these voting rights bills. on the holiday observing his birthday, the family of martin luther king jr. pleaded with senators manchin and sinema to support the filibuster. >> senators sinema and manchin also say if they -- if the bill doesn't get bipartisan support, it shouldn't pass. the 15th amendment that gave formerly enslaved people the right to vote in 1870, that didn't have bipartisan vote. should former slaves is have been denied the right to vote? >> all the elected tweeters throughout tweeting, posting, and celebrating my grandfather dr. king today, my message to