"The perfect day to see" = Please do this now!

"To Kill a Mockingbird" = Kill Maggie Haberman. Q was warning her earlier that she was about to be killed like Zoe Barnes from House of Cards. Operation Mockingbird was the C_A operation to infiltrate the press.

"on Broadway" = in public maybe?

"Amazing cast" = I'm still a loyal member of the cabal.

"and vital message" = this is really important!

"All rise" = other cabal members I've communicated with agree.