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Results: CNN (AZ, MI) | Google (AZ, MI)
6:25 PM PT (David Jarman): Things are starting to gel in Michigan. With 33% reporting according to CNN, it's 41 Romney, 38 Santorum, 12 Paul, 7 Gingrich. That closely matches the exits we've seen so far. Santorum is winning most of the state's landmass, if you look at the map... but Romney is running up the score in the 3 Detroit metro-area counties (especially Wayne, which is where Detroit is).
6:27 PM PT (David Jarman): Romney's stance on bankrupting Detroit seems to not to have irritated too many Detroiters, for some reason... he's winning Wayne County (the state's most populous county) 51-28, compared with winning it 44-26 vs. John McCain in 2008. That's how he's slightly overperforming his 2008 numbers.
6:30 PM PT:
The Kennedy thing killed Santorum with Catholics. How ironic...I wonder if he is throwing up now.
— @JohnFeehery via web
6:30 PM PT (David Jarman): The biggest score for Santorum is probably Ottawa County (the deeply conservative suburban county outside Grand Rapids, thanks largely to the large presence there of the ultra-conservative Reformed Church, part of that area's Dutch-American heritage). Romney won this county 35-30 in 2008. Today, he's losing it to Santorum 51-33. This is the part of the state where they were voting for Romney in '08 only because he was more conservative than McCain, not because he was the hometown hero.
6:36 PM PT (David Jarman): With 40% reporting now, the numbers haven't budged. It's still 41 Romney, 38 Santorum.
6:39 PM PT (David Jarman): Those college kids in Ann Arbor don't seem to have taken much interest here. Romney's beating Santorum by a 48-34 mark in Washtenaw County, not much different from the other collar counties around Detroit... no sign of a Ron Paul turnout, or an Operation Hilarity-fueled Santorum surge.
6:43 PM PT (David Jarman): Sorry to keep giving short shrift to Arizona, but they aren't reporting any votes yet. CNN seems to feel confident enough in their exit polls, though, to have called it in favor of Mitt Romney. (As we said earlier, the exits have him up 44-27.)
6:48 PM PT (Steve Singiser): In addition to the GOP presidential sweepstakes, voters in Genesee County are filling their state House seat (HD-51), where former occupant (Republican Paul Scott) was successfully recalled last November. The conventional wisdom was that the Democrats would have a tough go in this red-leaning district, given that the marquee event was the GOP primary. But Democrat Steven Losey is hanging tough, trailing Republican Joseph Graves by just a 50-45 margin with 21 percent reporting.
6:51 PM PT (Kaili Joy Gray): Liveblogging continues here.
6:57 PM PT:
Alas, we didn't shake it up enough to deliver the victory to Romney. But as ABC notes, Romney would've won comfortably otherwise, and perhaps not had to spend $3 million this last weekend to lock down his home state.