Cameron's speech at the Tory Party conference appears not to have played well with the brothers.
Unite joint general secretary, Derek Simpson said, "At the height of the worst recession in decades Cameron said nothing about job creation, nothing about supporting our industries and nothing about reigning in his friends in the city who caused economic meltdown. "
But what's this.
Is this the same Unite who donated almost £4m to the Labour Party last year?
Or indeed the same Unite whose Deputy General Secretary is one Jack Dromey, husband of Cabinet Minister Harriet Harperson, and who is being lined up for the safe Labour parliamentary seat of Leyton and Wanstead.
Indeed it is.