VIDEO : Donald Trump Sends Jimmy Fallon to Highest Friday Rating in 18 Months

Jimmy Fallon got a Donald Trump bump as the GOP presidential hopeful?s appearance took ?The Tonight Show? to its highest ratings for a Friday broadcast in 18 months. NBC?s ?Tonight Show? brought in a 3.6 household rating in Nielsen?s 56 overnight metered markets, which cover about 70% of U.S. TV households. In adults 18-49, Fallon averaged a 1.3/7. That was Fallon?s highest mark for a Friday broadcast since Feb. 28, 2014, shortly after his debut at the ?Tonight Show? desk.