Newt’s Undead Campaign Is Helping Romney?

Kornacki thinks Gingrich is being used:

The pro-Romney forces clearly grasp the potential usefulness of Gingrich and are being fairly blatant in their efforts to fortify him. The story of Sheldon Adelson, the casino magnate and Gingrich super PAC supporter, is well-known by now. Adelson has a longstanding personal and professional alliance with Gingrich, but he doesn’t care for Santorum and has essentially been flipped by Romney’s team. Adelson is still pouring money into the pro-Newt super PAC, but with the expectation that it won’t be used to tear down Romney (as it was in South Carolina) and that Gingrich will play a key role in making sure Santorum doesn’t win the nomination.