Stora tråden om Donald Trump [mod]

But even though Indiana may be pivotal — it awards its delegates on a winner-take-all basis by congressional district and statewide — the state is a big mystery because there hasn’t been a single poll there. That’s not just because of East Coast media bias (although it may be part of it); it’s a tough state to poll. Indiana law prohibits automated polling, the go-to method for many low-cost pollsters.

The state does not have party registration, which makes it modestly more challenging and costly for pollsters to conduct surveys of the voter registration file. Many of the prolific public pollsters employ the random-digit dialing method, like Quinnipiac, and have no history in the state. I suspect that a few pollsters will ultimately field surveys, but there won’t be many.

Trump's campaign has decided to mount a legitimate effort, using money and resources.

John Schnaedter, chair of the Allegheny Republican Party in southwest Pennsylvania, said that delegate contact from the Trump team began early.

"None of the campaigns have reached out to us other than Trump's," he said.

Schnaedter said that Trump's campaign is "putting together an Election Day strategy" for the state. He has at least two staffers employed there working on two fronts: First, to ensure people running for delegate slots support him, and second, educating voters to ensure that voters in Tuesday's primary elect those delegates.