| Question: what do Rick Santorum and Newt Gingrich have in common? Aside from their alternating status as the un-Mitt du jour I mean.
Answer: Both served multiple terms in Congress, and neither left of his own volition. Newt was drummed out by his own caucus. Senator Santorum was tossed out by his constituents after two full terms, by a whopping margin (18 percent).
Any observer of American politics understands how powerful an advantage incumbency is in our elections. It is a rare thing for a sitting US Senator to be deposed by his constituents; rarer still for his ouster to be so emphatic (absent scandal, that is). The voters of Pennsylvania had twelve full years on which to base their decision in 2006, and their verdict was unambiguous. Out Senator Santorum went. Yes, 2006 was a bad year for Republicans. But it was a particularly bad year for Rick Santorum.
Another Answer: Both have had difficulty winning endorsements from Republicans who served with them in Congress. This phenomenon has been more conspicuous in Gingrich's case... READ THE REST at CriticalMASS