Tune in for NPR special coverage of the Michigan and Arizona primary votes tonight starting at 9:00 pm on IPR News Radio. We'll have election results tomorrow on Morning Edition starting at 5:00am.
There is more than just delegates at stake in today's Michigan Republican presidential primary.
Thirty voting delegates to the Republican National Convention will be chosen from Michigan. Arizona also has a primary today to choose 29 delegates. But a week from today, voters in 10 states will cast ballots in the Super Tuesday round of primaries and Matt Grossman, a political science professor at Michigan State University, says the outcome of the Michigan primary will influence what happens next week.
"The closer you are to other states, the more the other states are influenced by your vote - at least that's what the historical evidence has shown - so the fact that so many states are going quite close to Michigan means they are more likely to be influenced by Michigan's results," he says.
There are 419 delegates up for grabs on Super Tuesday. That's a third of what a candidate needs to win the G.O.P nomination.