Gingrich was the first House speaker in American history to be disciplined for ethical wrongdoing. A total of 84 ethics charges were filed against him on a host of issues, including violating federal tax law and House ethics rules. Most of the charges were dropped, but he was eventually sanctioned $300,000 by a overwhelming 395-28 House vote, which included many of Gingrich's allies voting against him.
Gingrich is just a fascinating character to watch. Nobody in DC likes him. When career politicians in your own party speak openly about how much of a massive douchebag you are, you can pretty much bet you are a massive douchebag. And the fact that Gingrich is so arrogant to assume that the people who hate him will eventually support him as a presidential candidate is freaking nuts!