Now He Tells Us

From the Chicago Tribune: Republican Mitt Romney's family had to convince him to make a second bid for the presidency because he was reluctant to run again after failing to secure his party's nomination in 2008, Romney's son told the Boston Globe on Sunday.
In an article that examined what went wrong with Romney's losing 2012 presidential campaign, Tagg Romney said his father Mitt said he had no intention of running again after he did not become the Republican presidential nominee in 2008.
Senator John McCain secured the Republican nomination that year and lost to Democrat Barack Obama in the presidential election.
In order to overcome his father's reluctance, Tagg Romney told the Globe he and his mother Ann worked to change his mind.  http://www.chicagotribune.com/news/politics/sns-rt-us-usa-politics-romneybre8bn01b-20121223,0,7335349.story
If Romney was unsure about running, he should not have run and let someone else get the GOP nomination.