By Jessica Frank-Keyes A senior cabinet minister has said he is “disappointed” but “not surprised” at Rosie Duffield’s resignation from the Labour Party. The Canterbury MP’s decision to resign and sit as an independent had been coming “for quite a long time”, Pat McFadden told the BBC’s Sunday with Laura Kuenssberg show. Duffield announced she was resigning the Labour whip in the Times on Saturday, citing what she called the “cruel and unnecessary” policies of the two-child benefit cap and the ongoing gifts row. She wrote in her resignation letter to Prime Minister Sir Keir Starmer: “The sleaz…