I’ll confess that I got a little teary last night at the ovations for Biden. It was nice to see him get a little love from the party. His accomplishments have gone largely unappreciated by the public and his decision to withdraw from the race had to be incredibly difficult. He deserves all the appreciation we can give him for all of it. David Leonhardt had an interesting piece today about Biden’s legacy. And he defined him perfectly as a man who travelled his whole career in the mainstream of the party, whether more right or left as the party felt the times required. But Biden has not simply gone with the Democratic flow. Over his more than 50 years in politics, he has periodically shown strong opinions about how his party should change — and helped it do so. Biden has always understood the class resentments that many Americans feel. (If you haven’t read Robert Draper’s profile of Biden for The Times Magazine, I recommend it, including the section in which Biden analyzes George W. Bush.) Biden’s political career began in 1972, when he defeated an incumbent Republican senator in Delaware even as Richard Nixon won a landslide. Biden ran as a subtly different kind of Democrat, with a more working-class image than the party’s presidential nominee that year, George McGovern. Biden simultaneously distanced himself from the liberal fervor of the 1960s and portrayed himself as an economic populist. He criticized both draft dodgers and “millionaires who don’t pay any taxes at…