In the last one hundred years, only four Democrats have twice been elected president: Woodrow Wilson, Franklin Roosevelt, Bill Clinton, and Barack Obama. Obama's reelection was doubly remarkable considering the sluggish economy, the $1 billion plus spent to defeat him, and the fact that at the beginning of his campaign many Democrats were unenthusiastic. Obviously voters reappraised the president.
At the beginning of 2012, many Democratic stalwarts were less than thrilled by the prospect of a second Obama term. While their reasons varied, there was a common theme, "Obama hasn't kept his promises to my constituency." There were lingering complaints that 2009's stimulus package should have been bigger and a communal whine, "Obama should have listened to us." Nonetheless, by the end of the Democratic convention on September 6th most Dems had come around. They gave money, made phone calls, and traveled to swing states. As a result Obama got a higher percentage of Democratic votes than he did in 2008.