The Hill News

Roughly 40 percent of voters who went to the polls for the Illinois primary on Tuesday say they "have reservations" about the candidate they voted for, according to exit polls.

CBS News reports that 41 percent of those who voted for Romney have "reservations" about voting for him. Similarly, 44 percent who voted for Santorum said even they though backed him, they have some concerns about him, even though they voted for him.

CBS News also found that 56 percent of Republican voters said the economy was their top issue in choosing who to vote for in the primary. Twenty-six percent said the deficit was their top concern, and 12 percent said abortion was their top concern.

A majority of voters picking the economy over abortion could indicate how the primary will go. Mitt Romney worked throughout the race to highlight his credentials in the business world so if Republican voters are concerned most about the economy, that could mean they plan ! to back Romney. Santorum, on the other hand, has never shied away from discussing social issues like birth control and the importance of a strong family.

Exit polls conducted by MSNBC found that 31 percent of Illinois voters who went to the polls describe themselves as "very conservative" That's a lower number, according to MSNBC, than in Mississippi (42 percent) or Alabama (36 percent). Santorum won both the Mississippi and Alabama primaries.