The Latest on Brexit (all times local):

7:55 p.m.

A senior member of Prime Minister Theresa May’s Cabinet has quit over Brexit, in a new blow to the embattled British leader.

Britain's Prime Minister Theresa May delivers a speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament's backing for Prime Minister Theresa May's deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)
Britain’s Prime Minister Theresa May delivers a speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament’s backing for Prime Minister Theresa May’s deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)

Leader of the House of Commons Andrea Leadsom says she is resigning because she does not believe May’s Brexit plan delivers on voters’ decision to leave the European Union.

May is battling to stay in office amid demands she resign over Britain’s stalled departure from the bloc.

Leadsom has been a strong pro-Brexit force in the government.

Britain's Prime Minister Theresa May drinks water during a speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament's backing for Prime Minister Theresa May's deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)
Britain’s Prime Minister Theresa May drinks water during a speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament’s backing for Prime Minister Theresa May’s deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)

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5:15 p.m.

British Prime Minister Theresa May is digging in against a growing push by both rivals and erstwhile to remove her from office, as her attempts lead Britain out of the European Union appeared headed for a dead end.

Britain's Prime Minister Theresa May grimaces during her speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament's backing for Prime Minister Theresa May's deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)
Britain’s Prime Minister Theresa May grimaces during her speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament’s backing for Prime Minister Theresa May’s deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)

There was a feverish atmosphere in Parliament, as Conservative lawmakers met in private to plot a leadership challenge, and expectations are rising that May could be forced to announce her departure within days.

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1:50 p.m.

Britain's Prime Minister Theresa May delivers a speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament's backing for Prime Minister Theresa May's deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)
Britain’s Prime Minister Theresa May delivers a speech in London, Tuesday, May 21, 2019. The British government is discussing how to tweak its proposed European Union divorce terms in a last-ditch attempt to get Parliament’s backing for Prime Minister Theresa May’s deal with the bloc. (AP Photo/Kirsty Wigglesworth, pool)

British Prime Minister Theresa May is facing calls to rip up her tattered Brexit blueprint and call an end to her embattled premiership after her attempt at compromise got the thumbs-down from both her own Conservative Party and opposition lawmakers.

May received a flurry of criticism and hostile questions in the House of Commons as she implored lawmakers to support a bill implementing Britain’s departure from the European Union.

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10:40 a.m.

British Prime Minister Theresa May is under pressure to scrap a planned vote on her Brexit blueprint, after her attempt at compromise got the thumbs-down from her own party and the opposition.

May plans to ask Parliament to vote next month on a bill implementing Britain’s departure from the European Union.

In a last-ditch bid to secure support, May made concessions including a promise to give Parliament a vote on whether to hold a new referendum on Britain’s EU membership.

But opposition lawmakers dismissed the offer as too little too late, and pro-Brexit members of May’s governing Conservative Party accused her of capitulating.

May will likely face criticism from all sides, and calls to resign, when she defends her deal in the House of Commons on Wednesday.