Former first lady Nancy Reagan will endorse Sen. John McCainJohn McCainSenate panel votes to confirm Tillerson Overnight Defense: Trump nominates Air Force secretary | Senate clears CIA director | Details on first drone strike under Trump McCain: Trump's withdrawal from TPP a 'serious mistake' MORE (R-Ariz.), according to AP. McCain is in California and will receive the nomination in person.

"John McCain has been a good friend for over thirty years. My husband and I first came to know him as a returning Vietnam War POW, and were impressed by the courage he had shown through his terrible ordeal. I believe John