"Literally is one of those language bugbears, so we print a special note in the dictionary to advise on the problem, " says Brookes.

BBC: Why is 'literally' such a troublesome word?

White House officials past and present have been careful to note they do not tell the nominee what to say, but will often advise them about how to frame an answer, or caution them about saying too much.

CNN: Sotomayor's confirmation hearing starts Monday