Gingrich, like many other old order Republicans are Ill equipped to deal with the political savagery of the Alinsky Democrats. Gingrich was from a time when deals could be hammered out and middle ground could be found. those days are gone. The Alinsky democrats are strictly a scorch the earth, take no prisoners, give no ground, organization.
That's true, but Gingrich is just too juicy a target for them to ignore. I think he's mentally unstable.