Sen. John McCain is prodding one of his closest allies in the Senate to consider a run for the White House – Sen. Lindsey Graham. “I think he is looking at it, and I am strongly encouraging him to take a look at it,” McCain, R-Ariz., told ABC News. “I know of no one who is better versed and more important on national security policy and defense than Lindsey Graham, and I don’t think these challenges to our security are going away.” “He is eminently qualified,” McCain added. In an interview with The Weekly Standard last month, Graham, R-S.C., said...