Cruz and Sanders win in Wisconsin

In Wisconsin, Democrats went with the candidate who excited them the most, and Republicans chose the candidate who wasn't Donald Trump.

As Texas Sen. Ted Cruz won the state's GOP primary, exit polls show his victory appeared to be driven more by fear of Trump than excitement about Cruz. In fact, a majority of Wisconsin Republican voters say they're either concerned or scared of a potential Trump presidency.

On the Democratic side, voters chose Vermont Sen. Bernie Sanders, who they saw as the more exciting, inspiring and honest candidate, according to early results of exit polls conducted for The Associated Press and television networks by Edison Research. But even then, more voters view former Secretary of State Hillary Clinton as the candidate most likely to beat Trump, who has been the Republican front-runner throughout the primaries.

A majority of Republican voters say they're either concerned or scared of a potential Trump presidency, exit polls show. More than a third say they're scared about what Trump would do as president, and about 2 in 10 say they're concerned.

At the same time, though, about a quarter of Wisconsin GOP primary voters say they're excited about Trump, while less than 15 percent say that of either Cruz or Ohio Gov. John Kasich.

Most are at least optimistic about a Cruz presidency, exit polls show.