The Globe and Mail has a review of Stephen Harper! The Musical, which it calls "an entertaining romp." Since I haven't seen it, I cannot venture my critical two cent's worth. I would note, however, that it's no Jennifer Lynch! The Musical (if I do say so myself as the author of said Gypsy-esque confection). Here's my favourite number from the show, a reworking of a Big Band standard.
And for my next musical comedy feat...Iggy! The Musical?
Update: Here's a bit of the theme song as sung by the show's protagonist:
I used to sit and glower
Up in my Iv'ry Tower
Occasionally deigning to descend.
An Iggy Ex Machina
I'm trying to begin a
New chapter here--
Trudeaupia without end...