Jay Leno is criticizing late-night hosts for inserting politics into their shows. The former 'Tonight Show' host took aim at partisan late-night shows in a recent interview with the Ronald Reagan Presidential Foundation. While the interview was taped at least two weeks ago — likely before CBS made its shock announcement that it was canceling 'The Late Show With Stephen Colbert' on July 17 — the portion of the interview containing the late-night criticism was posted on YouTube last week and has been making the rounds this weekend due to recent headlines.