July 13: Following a Conservative Party leadership contest, Home Secretary Theresa May becomes prime minister. June 8: A general election called by May to bolster her party’s representation in Parliament to help with the Brexit negotiations backfires. Her Conservative Party loses its majority and continues in a weakened state as a minority government. Jan. 15, 2019: The Brexit deal comes back to Parliament, where it is overwhelmingly defeated on a 432-202 vote. Sept. 3: Rebel Conservative Party lawmakers vote against the government in protest of Johnson’s strategy.