A cold open to the SNL season finale on Saturday saw Alec Baldwin’s Donald Trump leading a rendition of Leonard Cohen’s Hallelujah, joined by Kate McKinnon’s Kellyanne Conway, Beck Bennett’s Mike Pence, and Scarlett Johansson as Ivanka Trump. The teaser capped a week of turmoil at the White House, and alluded to McKinnon’s November 13 rendition…