Exit polls suggest Mitt Romney might have a problem rallying evangelicals and conservatives to the polls in November.

Dan Balz argues in the Washington Post that Romney does much better among voters who have family incomes above $100,000, but he needs to find a way to expand his support if he is the eventual GOP nominee.

Romney has won every state that has had an exit poll and in which white, evangelical Christians accounted for less than 50 percent of the electorate. He has lost every state where evangelicals made up more than 50 percent of the electorate. Santorum has won five of those, and Newt Gingrich took two.

 

In Illinois, about four in 10 voters said they were evangelicals, on a par with Michigan, lower than Ohio and lower by far than in the Southern states and Iowa. Santorum did slightly worse among evangelicals in Illinois than in Michigan and was on a par with his showing in Ohio. But Romney’s percentage was higher than in those other two states — an encouraging sign for his campaign.

A similar rough boundary line exists for the electorates based on ideological leanings. Romney has won every state with exit polls in which “very conservative” voters have accounted for fewer than 35 percent of the vote. He has lost the states in which the percentage is greater than 35 percent.