The result saw a swing of 27% from Labour, which has held the seat in Westminster since the 1920s and in the Senedd since it began at the turn of the century. Whittle promised to work like "a Trojan for every man, woman and child" and said he was proud to call Caerphilly his home. Celebrating victory outside the town's castle he said: "I believe the world is watching Wales, an emerging nation starting to control our lives again."