" The ballot election in February does not count for delegates, however it does usually project who will win the state the follow month or gives momentum to a candidate needing an extra push. In March, the state holds a separate caucus which actually decides who wins Missouri’s Republican delegates for the nominating convention."
"So in reality nothing is missed because Missouri is holding a caucus in March to decide the delegates. Still, it doesn't look good in the news that Gingrich isn't on the ballot for the primary in Missouri."
Click on Link: Not on Ballot
So this is why Santorum would have adds out. Go to your Caucus and vote for NEWT.
Newt will not be on the ballot in Missouri, but they also have a caucus and that is where it counts. Read the whole link I posted there.
I don’t live there but If he’s not on the ballot how does the caucus decide who wins? Can they can write in?