Joe Biden and Kamala Harris should not run again in 2024
David Ignatius writes: Joe Biden launched his candidacy for president in 2019 with the words “we are in the battle for the soul of this nation.” He was right. And though it wasn’t obvious at first to many Democrats, he was the best person to wage that fight. He was a genial but also shrewd campaigner for the restoration of what legislators call “regular order.” Since then, Biden has had a remarkable string of wins. He defeated President Donald Trump…