Conservative candidate continues to deny claims made by TV producer Daisy Goodwin.
Dozens evacuated from building in Croydon as 60 firefighters battle blaze.
Police in London issued some "friendly advice" after arresting the man.
The US president addressed an audience in Northern Ireland to mark the 25th anniversary of the Good Friday Agreement.
Baroness Casey's review calls for immediate reform – or for the force to be broken up.
"If you look for it, I've got a sneaky feeling you'll find that love actually is all around."