Amber Rudd has risen rapidly through British politics, becoming Home Secretary only six years after being elected an MP in 2010. It's a rise unmatched by any other politician since World War Two. Becky Milligan profiles the woman who has made this leap and stepped into Theresa May's shoes. In an exclusive interview for Profile her sister, Melissa Dunford Wood talks candidly about their childhood, parents and friends, and how her sister was "on the floor" after the unexpected and painful divorce from her ex husband AA Gill.