Nova Scotia MP has been sitting among Conservatives of one kind or another in the House of Commons since 1988. But a few minutes ago, he took his new seat among Liberals and separatists.
Casey was booted from the Conservative caucus after voting against his own government's budget.
Casey has Joe Commuzzi – kicked out of the Liberal caucus for voting for the government's budget — is on Casey's right in the fifth and final row on the opposition side of the House.
The seat to Casey's left is vacant. Liberal MP Yasmin Ratansi sits in front of him.
As Casey took his seat before Question Period, many Liberals came over to shake his hand.
Liberals shaking hands wasn't the only novelty that went with Casey's new parliamentary geography.
The NDP actually gave Casey one of their (very few) spots in question period right after Peter Stoffer so the newly independent MP could continue to take the fight to the Tory frontbenches who only yesterday were his colleagues.
Red faces on the Blue benches.