Good morning. This is the Tuesday, May 26 edition of First Up, the Star’s daily morning digest. Sign up to get it earlier each day, in your inbox.

Olivia Chow is in. Caroline Mulroney is out. Mark Carney is warning Albertans against a “very dangerous bluff.” Doug Ford is sticking to his guns. And folks are wondering if Nate Erskine-Smith will stick to his in the Ontario Liberal leadership race as Navdeep Bains jumps in. Better get some coffee — it’s a busy day for politics, and for other news, too.

Here are six things to know to start your Tuesday:

Peel police arrested five alleged members of a violent extortion gang operating in Brampton.

It’s not a surprise, but it is official: Mayor Olivia Chow is running for re-election.