FILE - President Joe Biden delivers a speech on voting rights at the National Constitution Center, on July 13, 2021, in Philadelphia. Biden often talks about how the U.S. must show democracies can deliver, but he has done little to press the case for voting rights, other than a speech in Philadelphia. The anniversary will bring this issue back to the forefront, and it remains a central challenge for the president. (AP Photo/Evan Vucci, File)
