[cynwoody]

That wasn’t my question. In most of the primaries, he didn’t get a majority of the vote. He “won” with a plurality, meaning most GOP voters wanted somebody else.

Your question is phrased in the singular, but the answer is very much in the plural. Romney got over half in a couple of dozen states, at least, although the higher percentages were mostly in the states voting later. In the end, Romney got 51.5% of the total primary popular vote, so it's not fair to say he won by a mere plurality. Lots of numbers here.

The rules were actually fairer this time around. Most states were not winner-take-all, so there was room for less popular candidates to collect delegates. For instance, I voted for Newt in Massachusetts on March 6. When I checked the results and found he got only 4.7%, I realized I should have voted for Santorum or Paul, each of whom came much closer to the 15% threshold to take a delegate away from Mittens, who got almost 72%.

Here's a map showing how the counties sorted out:

Orange is Romney's color. The darker the shade, the higher the percentage. E.g. check out Utah (LOL!).

[Brellium]

Awesome, I now have a map with yellow counties to show me where all the crazies live!

[xzins]

Good map. What should be noted as well is those states that went Romney AFTER Gingrich and Santorum were pretty much out of it.

That is not a test of Romney’s strength in that state if a different candidate had polled better than Romney between January and April.

They were only voting for the last man standing, not for Romney.