Iowa votes -- and the long 2016 White House race begins

Iowa votes Monday in the first test of the US presidential race, with Republican frontrunner Donald Trump looking to capitalize on his stunning campaign success and Hillary Clinton defending her status as the Democratic favorite. At most, a few hundred thousand people are expected to attend, but success in Iowa can be the bedrock to a candidate's long-term success. On the Republican side, the billionaire real estate tycoon Trump -- who has shredded the traditional campaign playbook with his sava