• TOP RIGHT: Republican presidential candidate and former Massachusetts Gov. Mitt Romney, left, talks to his running mate, Rep. Paul Ryan, R-Wis., as Ann Romney waves after her husband conceded the 2012 presidential race at his election night rally in Boston.
• LEFT: Sen. Rand Paul, R-Ky and wife Kelley Ashby pose for a 2013 file photo at the TIME 100 Gala, which celebrates the “100 Most Influential People in the World” at Jazz at Lincoln Center in New York.
• TOP LEFT: Former Florida Gov. Jeb Bush greets his mother, former first lady Barbara Bush, at the White House’s 2010 Presidential Medal of Freedom ceremony in Washington.
WASHINGTON—It’s considered bad form for politicians to say things that are not true.
When they talk about their own ambitions, though, deception pretty much...