Turns out, Romney spent all that money to win the popular vote in his state, but the delegate count amounts to a draw:

Rick Santorum claimed a partial victory Wednesday when final results showed he and Mitt Romney evenly split Michigan' s 30 delegates, even though Romney got more overall votes in the Republican presidential primary Tuesday.

The latest estimates from CNN showed both candidates with 15 Michigan delegates, while Romney was ahead in the popular vote with 41% to Santorum's 38%.

While the popular vote is all that matters as far as—ugh—"optics" are concerned, Santorum getting the same number of Michigan delegates has to be making the Republican Party machine pretty nervous.