Two and a half years after citizens of the United Kingdom voted in favor of leaving the European Union, we will finally learn whether or not the so-called “Brexit” will actually be happening.

British Parliament will cast votes in London today on whether or not to approve Prime Minister Theresa May’s Brexit agreement that was crafted with E.U. officials after the June 2016 countrywide referendum that passed by a thin margin. Word on the street is that today’s vote is expected to go heavily against approving the Brexit deal, and that is likely to trigger a no-confidence vote in May.

If the vote does go against May’s deal, the margin by which it loses is important. Fewer than 100 votes could mean Parliament might try to update the current deal, but more than 100 votes could be a sign that Parliament is more interested in drastic changes to the deal or even nixing it altogether. This is all happening against the backdrop of the March 29 deadline the U.K. set for leaving the E.U.

For more, Larry Mantle speaks with a reporter who has been following the Brexit saga and is at British Parliament covering the vote.

Guest:

Max Colchester, reporter covering Britain, Brexit and U.K. politics for the Wall Street Journal who is at British Parliament covering the vote; he tweets @MaximColch