The U.K. faces yet more political turmoil Wednesday as another vote in Parliament could topple the government and leave a leadership vacuum at a crucial point in the country's history.

Lawmakers are debating a motion of no confidence in Theresa May's administration. A vote will follow in the evening which, should the government lose, could trigger a countdown toward a General Election.

The motion was tabled by the main opposition Labour leader, Jeremy Corbyn, who claimed the government's Brexit deal with Europe was now dead after its overwhelming rejection by politicians on Tuesday.

The vote of no confidence is an attempt by Corbyn to trigger a new General Election which would allow him a chance at seizing power as the next leader of the U.K.

Under the Fixed Term Parliament Act of 2011, Parliament's fixed five-year term can only be shortened in two ways.

First, if more than two thirds of the House of Commons vote to call an election — and that means 434 of the 650 lawmakers.

The second is Corbyn's plan. If his motion of no confidence tonight is passed by a majority, there is then a 14-day period in which to pass an act of confidence in a new government. If no such vote can be passed by Parliament, a new election of the British people must be held.

That election cannot happen for at least another 25 working days.