What's the big difference between the Republican primaries this year and the primaries in 2008? I think one of the key changes is how sparse the early schedule is. This year we had Iowa, then a week until New Hampshire, then eleven days until South Carolina, and now another ten days until Florida. In 2008, there were a bunch of other primaries sandwiched in: Wyoming, Michigan, Nevada, Louisiana, and Hawaii.
That sure feels like a big difference to me. The primaries were so fast and furious in 2008 that there wasn't much time for voter sentiment to change. Momentum was a big deal. This year, the eleven days from New Hampshire to South Carolina felt like forever, and the next ten days are going to feel like forever too. If Newt Gingrich has a chance to win, it's going to be because there was so much time for him to get a bit of a bandwagon going in South Carolina and (perhaps) again in Florida.
If Gingrich pulls this out (which I still doubt) and then goes on to get clobbered in November (which I have little doubt about), I suspect that the Republican leadership will be none too pleased with the way they tweaked the early schedule this year. More early states, please.