Even Rupert wants to know:
Fox News Channel on Wednesday suspended the contracts of on-air contributors Newt Gingrich and Rick Santorum for two months as the men explore a possible White House run.
The network, in an on-air announcement by Bret Baier, said Gingrich and Santorum would be dropped by Fox entirely on May 1 unless they notify the network by then that they are not running for president.
Source: Washington Post
Question: Why won't FNC do the same for Huckabee and Palin?
~Or its simply that they're hosting TV shows while Newt/Rick are commentators. Big difference.