Ezra Klein sums it up:
Newt Gingrich served in Congress from 1979 to 1999. After he resigned his seat, he settled down in McLean, VA and sought to forge a new career as one of Washington’s highly paid, widely respected, wise men. He began his Center for Health Transformation and consulted for Fannie Mae and Freddie Mac. He filmed anti-global warming commercials with House Speaker Nancy Pelosi and co-authored New York Times op-eds with Sen. John Kerry. He served on the bipartisan U.S. Commission on National Security and as co-chair of a task force on UN reform. Newt Gingrich has, in other words, been a key player in Washington since Jimmy Carter was president. Yet in his victory speech in South Carolina, he blasted “the elites in Washington and New York.” If Newt Gingrich is not a Washington elite, no one is.