Media speculation has May resigningtoday.tomorrow.
could be click bait/
https://www.express.co.uk/news/politics/1105321/Brexit-latest-news-theresa-may-indicative-votes-commons-latest
"
Brexit LIVE: May to RESIGN - MPs ready for Prime Minister to quit at 5pm tomorrowTHERESA May will address Tory MPs at the 1922 committee at 5pm tomorrow amid speculation she will use the meeting to announce the date of her resignation."
