Alec Baldwin returned to "SNL" on Saturday's politics-focused cold open, but the former Trump impersonator took on a different figure entirely for this episode: Robert F. Kennedy Jr. The cold open imagined the private meeting between outgoing president Joe Biden (played by Dana Carvey) and incoming president Trump (James Austin Johnson), and in a bit that introduced a couple of Trump's cabinet appointments, Baldwin stepped in as RFK Jr. Baldwin's appearance was met with an applause break, after which he touted his credentials as Trump's pick for Secretary of Health and Human . . .