Why the August 7th Primary Matters
Simply put, the August 7th primary matters because whoever wins the primary will be the only candidate on the ballot. There are only three candidates running, and we are all on the Republican ticket. Thus, the primary will decide who gets to be the sole Republican candidate on the November general election ballot. And there isn't anyone running on the Democrat ticket.
But why is there no choice of candidates?
Especially in a presidential election year, the ballot can be several pages long. It can be very frustrating, then, to actually go through all of the pages only to see that the local judge and local township officials are running unopposed.
"Where is my choice?!" you might scream to yourself.
Your choice is on primary election day, Tuesday, August 7th. Since the general election ballot can only have one candidate from each party, if all of the candidates are running in the same party then it's the primary which decides the general election.
Michigan’s Presidential primary [was February 28, 2012].
Both Republican and Democratic voters [had] the opportunity to vote for 1 of 11 candidates on the Republican primary ballot, or for President Obama who [was] uncontested on the Democratic ballot.
The February federal presidential primary, however, bore nor weight on the local August 7th primary. It's confusing, yes. Ignore the confusion. Come out and vote on August 7th.