U.K. House of Commons leader Andrea Leadsom resigned from Prime Minister Theresa May's government, saying she opposes the concessions set out in the newly proposed Brexit legislation.
"I no longer believe that our approach will deliver on the referendum result," Leadsom said in a letter to May, who has promised Parliament a vote on whether to hold a second Brexit referendum as part of several offers to finally get her Brexit deal approved.
Leadsom said a second referendum would be "dangerously divisive" and may undermine the integrity of the U.K., echoing sentiments May previously expressed.
Leadsom also said the U.K. would not be "truly sovereign" under May's latest Brexit deal, which raises the possibility of closer trading arrangements with the EU.
In addition, Leadsom cited a "breakdown of government processes," saying Cabinet members were unable to properly scrutinize or approve recent legislative proposals on Brexit.
Leadsom's resignation, which comes on the eve of the European Parliament elections, reflects the perceived turmoil within May's government and Conservative Party over her Brexit strategy. The prime minister is facing growing calls to step down or cancel a planned fourth Parliament vote on her Brexit deal in June.
May has already agreed to set out a timetable for her departure as the Conservative Party's leader after the next Brexit deal vote.