I'm not denying that but I still don't think that when push comes to shove those few people who are still undecided will end up going with Romney in Mississippi and Alabama. If he wins it's by very small margins, and up the middle. Which is entirely possible and which would of course be disastrous for those of us who are still hoping for a drawn-out process, but which wouldn't indicate something as bizarre for me as somebody who's spent time in these states as the idea of Romney being this clearly ahead. I don't view that as Romney 'clinching'.
It might end up being a major Romney win,
if he wins, in terms of momentum, but it will not be a "clincher." There just are not enough delegates.
I think it is possible for Romney to win one of AL or MS, or both, but he certainly get all the delegates. The problem is for the person who comes in third, probably Santorum.
There are 129 delegates up on Tuesday. Gingrich, on a good day, could win 60, but Romney would probably get 40-50. That could leave Santorum/Paul with the remainder, 19-29. In theory, Romney increases his lead over Santorum, by 11-21 delegates
If Romney should be the one who wins, maybe getting 55, Santorum is still going to get 20-30. The gap will be larger, 25-35 delegates.
The keys are now MO, where Santorum will probably gain delegates, and IL. Keep in mind that PR awards 23 delegates, WTA, and that happens between MO and IL. Romney could go into IL with a greater delegate lead over Santorum, by as little as about 20 delegates and as much as about 65 delegates.