Mitt Romney officially announced his candidacy for president in June 2011. But during the spring of that year, Romney considered scrapping his campaign altogether, as detailed in a soon-to-be-released book about the 2012 presidential campaign by The Washington Post's Dan Balz.

(Jacquelyn Martin/AP)

Then in the exploratory committee phase of his campaign, Romney was preparing on a May morning to deliver a speech in Michigan to defend the health care plan he signed into law as governor of Massachusetts and attack President Obama's federal health care measure. The Wall Street Journal released a scathing op-ed that same day slamming the Republican over his Massachusetts plan.

Romney's eldest son Tagg got a message from his father early that morning, he told Balz. "I'm going to tell them I'm out," Tagg Romney recalled his father telling him. "He said there's no path to win the nomination."