The Clintons are managing to "pay the bills", in the words of Bill Clinton, when asked about his high speechmaking fees. According to financial disclosures required by law, Bill and Hillary Clinton made $25 million from speeches alone since January 2014.

Mitt Romney took on Barack Obama in 2012 and lost. He put on boxing shorts and took on five-time heavyweight champion Evander Holyfield in a charity match. Romney, 68, went two rounds with Holyfield, 52, for the lighthearted fight that raised an estimated $1 million for the Utah-based CharityVision.

"You too can be president." - Former president George W. Bush, giving advice to C students at Southern Methodist University, joking about his grades in college in a commencement address.