The issue focused on laws allowing medical marijuana users to smoke pot and purchase it from dispensaries. It also addressed questions about whether medical marijuana should be legalized at all.

Mr. Pence said he supported medical marijuana but wanted to study the drug more closely before determining how best to regulate it. He told reporters that medical marijuana had been shown to help many patients.

"We're going to study this law," Mr. Pence said. "It's very clear we need to research this medicine in order to determine