Patch.com5 GOP Presidential Contenders Confirm Mackinac AppearancesPatch.comSo far, Jeb Bush, John Kasich, Scott Walker, Ted Cruz and Carly Fiorina plan to speak at big Republican leadership conference. By Beth Dalbey (Patch Staff) August 2, 2015. ShareTweetGoogle PlusRedditEmailComments0. 5 GOP Presidential Contenders ...Sapochetti: Voters win by having all GOP voices heardBoston Heraldall 5 news articles »