Update, 4:30 p.m. Thursday: A Michigan Republican committee voted Thursday to award 16 of the state's 30 delegates to the Republican National Convention to Mitt Romney and the remaining 14 to Rick Santorum.
Michigan's Tuesday Republican presidential primary showed the candidates splitting the state's delegates, though Romney won the popular vote.
The committee voted 4-2 to give Romney Michigan's two at-large delegates, according to MIRS.
Michigan Republicans award delegates based on congressional districts – two for each of the state's 14 districts – and two more awarded by the statewide vote.
2 p.m. Wednesday: Mitt Romney's campaign got Tuesday night after learning that the candidate had won the popular vote in Republican presidential primaries in Michigan and Arizona.
The Michigan native took 41 percent of the overall vote in Michigan, compared with Santorum's 38 percent, and easily won Arizona 47 percent to 27 percent.
Many major media outlets are saying Tuesday's primary successes are exactly what Romney's campaign needed to boost momentum before 10 states hold primaries next week on what is called Super Tuesday.
However, Santorum's campaign is also calling Michigan a success, in light of reports Wednesday that the two candidates will likely split Michigan's 30 delegates nearly in half.
"Strategically, we were targeting delegates more than anything else," said John Brabender, a senior advisor for the Santorum campaign, during a conference call Wednesday afternoon.
The call was held in hopes of changing the storyline of the outcome of the Michigan primary in Santorum's favor, Brabender said.
"Despite outspending us by a great amount and being on his own turf, we managed to tie in Michigan," he said. "And that is a disaster for Romney."
Two delegates are awarded for each of Michigan's 14 congressional districts won by a candidate and two additional delegates are awarded to the candidate with the highest overall vote.
Romney won seven congressional districts in southeast Michigan and the Thumb, while Santorum, former senator of Pennsylvania, won six districts in west and northern Michigan and the Upper Peninsula.
The results of the 13th District, the last to be counted, still aren't final, but it seems likely it will go to Santorum. It includes the east side of Detroit, the Grosse Pointes, Harper Woods and several downriver communities. It would be the only southeast Michigan district won by Santorum.
If Santorum wins it, the two candidates will split the congressional delegates evenly.