Reform is flirting with traditional Labour support - workers and union members. Ten local authorities are now controlled by Reform - including Doncaster, taken from Labour - plus three mayoralties and a new MP.  
 
After Nigel Farage's almost unbelievable success in local elections last week, is this the strategy to take him all the way to Downing Street?  
 
Niall Paterson is joined by our political correspondent Liz Bates, and reporter Alexandra Rogers, to unpick what Reform's flirtations mean for Labour. 

Producer: Soila Apparicio 
Editor: Philly Beaumont