Premier Rachel Notley was at last sworn in on the steps of the Alberta legislature on Sunday, and across the #cdnpoli Twitterverse, Canadians weighed in on her biggest challenges.

First, there's collaborating with a defiant energy sector. Notley plans to reshape provincial royalty rules and oppose Enbridge's Northern Gateway pipeline -- a position that could prove unpopular among oil execs or Canada's current prime minister.

Then there's the budget. Amid job losses and low oil prices, Albertans are looking for a healthier fiscal plan than the one Jim Prentice presented in March.

Most of all, media reports have highlighted the challenges posed by Notley's rookie caucus. Ten of her MLAs are in their twenties -- one is already suspended for inappropriate social media posts.

Are these the biggest hurdles Alberta's new premier will face? Or is there one we've missed? Tell us below.