Since Limbaugh became a national syndicated talk show phenom, the GOP has lost the Potus popular vote 5 of 6 times.
People in the middle, that can be persuaded to vote for either side, apparently nmay be entertained by Rush, but not persuaded regarding how they vote.
His style of entertainment accomplishes a big audience for hime, big income, but it does NOT help win elections.
Republicans and so-called conservatives listen to him cheer lead. They know the olde cheers. But fewer and fewer people show up on their side of the stadium come game time.
Rush's performances should be recognized for what they are: Episodes in an entertainment serial.
eg. Saturday Night Live, Mrs. Marple, Dallas.