The leadership challenge against UK prime minister Theresa May is being watched closely by officials in the European Union.
She toured EU capitals including Brussels on Tuesday as she tried to get clarifications on the Brexit deal which she agreed with the UK.
But as our Europe correspondent Jack Parrock reports, the EU didn't give her anything she could take back to the British parliament to convince them to approve it.
IN: "While they said..."
OUT: "...can't be renegotiated."
DUR: 41 secs