strongMiami: /strongBill Clinton has found the ex-president sweet spot. His popularity is the highest it's ever been. The public is longing for the flush economy he presided over. And President Barack Obama, once a political rival, needs Clinton's help to win re-election. Sure, Clinton would still get attention for his humanitarian work or by simply being a former president. But this is the spotlight he wants - the final stretch of a tightly contested race for the White House. I believe with all my heart that a society that basically says, 'You're on your own' is never going to be as successful in a highly competitive and interdependent world as a society that says, 'We don't have a person to waste,' Clinton said Tuesday, kicking off back-to-back days of campaigning in Florida on Obama's behalf. Clinton's words were as much about backing the president as they were about defending his own economic vision. That's the nature of the freshly minted political alliance between Obama and Clinton - one that comes with risks for both men. Clinton risks denting his sky-high favourability ratings by jumping back into the political fray. He learned that lesson in 2008 when he campaigned for wife Hillary Rodham Clinton in the Democratic primary and came across at times as angry and out of touch with the current political landscape. [caption id=attachment_452978 align=alignleft width=380