The newest Liberal Democrat MP has said his victory in the Tiverton and Honiton by-election shows that Boris Johnson must resign, as he called on the PM's allies to stop "propping up this failing prime minister".

Richard Foord warned: "The Liberal Democrats are coming. If you don't take action to restore decency, respect and British values to Downing Street, you too will face election defeats like the one we've seen here tonight." Report by Buseld. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn