US President Joe Biden used the searing memories of Selma's "Bloody Sunday" to recommit to a cornerstone of democracy, lionising a seminal moment from the civil rights movement at a time when he has been unable to push enhanced voting protections through Congress and a conservative Supreme Court has undermined a landmark voting law."Selma is a reckoning. The right to vote to have your vote counted is the threshold of democracy and liberty. With it anything is possible," Biden told a crowd of several thousand people seated on one side of the historic Edmund Pettus Bridge, named for a reputed Ku Klux Klan leader."This fundamental right remains under assault. The conservative Supreme Court has gutted the Voting Rights Act over the years. Since the 2020 election, a wave of states and dozens and dozens of anti-voting laws fuelled by the Big Lie' and the election deniers now elected to office," he said.