Women will be allowed to become bishops in the Church in Wales following a key vote at the Anglican groups meeting in Lampeter, West Wales today.
More top news
Extracts released by 10 Downing Street suggest Mrs May will say the UK will not settle for a "half-in, half-out" policy.
Milder for most of us
In her Brexit speech on Tuesday, the Prime Minister is set to urge the EU to forge a fair trade deal or risk commercial war.