The British Parliament’s long-anticipated vote on a plan to withdraw from the European Union — also known as Brexit — came to its expected conclusion on Tuesday night when lawmakers weighed in on a deal proposed by Prime Minister Theresa May.

No one really thought that at the last minute Mrs. May would be able to pull a rabbit out of her hat to secure approval for the plan. And she didn’t, with her Brexit deal rejected by a vote of 432 to 202. Now she has to go hat in hand to Brussels to see if she can work some magic there.

Spoiler alert: She almost certainly cannot.

Here’s what to know as Britain enters uncharted territory of the process that is Brexit.

The opposition has called a vote of no confidence.

On Tuesday night, Jeremy Corbyn, the leader of the opposition Labour Party, called for a vote of no confidence in Mrs. May’s government, denouncing what he called its “sheer incompetence.”