Emma Cowing: How will Hillary deal with all the high-flying women around her?

QUITE THE double act, Hillary Clinton and Britney Spears. Given how much we've seen of them both lately, you'd think the pair were embarking on a three-month sell-out show at the MGM Grand in Las Vegas. They've certainly got enough sequins between them.

Despite the 34-year age gap, they share something else too: a sense of resilience. No matter what hardships they face, whether it's cheating husbands, failing to reach the No 1 spot, shaving their heads in public (OK, that one was just Britney) or be...