VIDEO : Jimmy Fallon Tag Teams Tonight Show Monologue With Jay Leno

What a welcome return! Jimmy Fallon delivered the opening monologue on NBC's The Tonight Show Tuesday before faking an injury and asking someone to take his place. Enter his predecessor, Jay Leno , who came prepared with endless material regarding the 2016 presidential race. Leno's final episode of The Tonight Show aired in February 2014, with Fallon taking the show over weeks later. Leno's new show, Jay Leno's Garage, debuts Wednesday at 10 p.m. on CNBC.