"At this point I have not decided," said Pennsylvania GOP Chairman Rob Gleason. "I want to win in November, so I will support the candidate that has the best chance of defeating Hillary Clinton."
Ted Cruz seeks to snag delegates away from Donald Trump →
"The challenge for those people is to get in the game," Mr. Gleason said. "I don't think they would run unless they thought they could get into the game."
GOP explores special debate rules for Carson, Fiorina →