On rare occasions, Americans coalesce around a common cause, usually after some calamity - a terrorist attack, a natural disaster or, say, during a presidential election. Take today.
Sen. Lindsey Graham, one of Donald Trump's fiercest critics, is now calling on Republicans to support their presumptive nominee. Graham urged GOP donors at a private fundraiser Saturday in Florida to unite behind Trump's campaign and stressed the importance of keeping likely Democratic nominee Hillary Clinton from the White House.