Lou Holtz, former Notre Dame football head coach, said Monday he is endorsing Donald Trump for president a day ahead of the Indiana primary. "The main reason I'm endorsing him: I've played his golf course, I've stayed in his hotel, he does nothing but go first class in everything." In 2008, he donated to Hillary Clinton who is likely to face Trump in the general election this fall. According to filings from the Federal Election Commission, Holtz gave Clinton's failed 2008 campaign $2,300 in March of that year. Holtz has not given to Trump this cycle. He has also previously contributed to Dan Quayle.

—Gideon Resnick