We haven't had a truly brokered convention since 1952. That's when Dwight Eisenhower and Adlai Stevenson won the Republican and Democratic nominations.
That may change this year because it's looking like none of the Republican candidates will get enough to clinch the nomination on the first ballot.
And, that makes the Michigan Republic Convention extremely important.
Anywhere between 4 - 5,000 Republicans are expected to attend this weekend. And, around half of them are vying for a spot as a delegate to the National Republican Convention in Cleveland this July.
"I wanted to just be part of it. It's very important to me," said Kathleen Thorrez. She was selected by Jackson County Republicans to run for a spot as a Donald Trump delegate.
"It's exciting because Michigan actually had a chance this year to participate. Typically in the past, all the candidates have been chosen, so Michigan - Jackson - Michigan, all of us had an opportunity to state who we wanted to be President of the United States," she explained.
And, she told Fox 47 News she's supporting Trump because that's who voters chose in March's Republican Primary.
"I think Jackson County and the state of Michigan already made their choice," Thorrez said.
As a result of the Primary, the state will pledge 25 of its delegates to Trump and 17 each to John Kasich and Ted Cruz.
Each candidate will get one delegate from each of Michigan's 14 congressional districts Friday night.
Then, on Saturday, the at large delegates will be divided up -- 11 for Trump, 3 for Kasich, 3 for Cruz.
Choices that must be made wisely in case of a brokered convention.
Sarah Anderson, Communications Director for the Michigan GOP, explained, "All Michigan delegates are bound on the first ballot. That means if you go to Cleveland as a Trump delegate, you must vote for Trump on the first ballot. On successive ballots, Michigan delegates are unbound so they could vote for whomever they choose."
That's why campaigns have been working hard to make sure they have loyal delegates.
"I think we've heard in some other states some other people will say they're one thing but they're really not and so we're just, we're covering our bases," Scott Hagerstrom of the Trump Campaign said.
He's been keeping constant communication with delegates, like Thorrez who said a switch in a brokered convention would be dishonest.
"That's very sneaky and it's very uncomfortable to even be talking about it personally. I think that's a strategy that doesn't fall well with my sense of nature," she said.
I also spoke with both the Kasich and Cruz campaigns.
Kasich's State Director told me they have strong support in this state and have been working closely with the same supporters from before the Primary and many they garnered after.
Cruz's State Director said they're just as confident, but she doesn't think Kasich has a chance. So, she's planning on getting his voters to choose Cruz in a brokered convention.
