I logged in to check my application status today (march 31st), and got unsuccesful on all my dates. I'm going to login tomorrow at 10am (Eastern Time) to try again, but still I have questions :

#1 : I see unreached quotas on some of the dates I asked, how come ?

#2 : Does Canadians have as much chance as Americans, or they give priority to U.S. resident ?

Sorry if this have been asked before, a link to an answer will be appreciated.