In February of 2011, a man called into the Rush Limbaugh show and said he believes the reason Newt Gingrich wrote a book on Ronald Reagan was for the 2012 elections and because Limbaugh called him out after Gingrich stated, "The era of Reagan is over."
Limbaugh did not dispute what the man believes. In fact, he went on to tell the caller one of his employees said he only gets "two percent of the credit" that he deserves.