Iowa has spoken. The first US state has delivered its verdict and this much is clear: the race is wide open both for the Republicans and the Democrats. Texas senator Ted Cruz edged Donald Trump and Marco Rubio, while Hillary Clinton and Bernie Sanders were tied virtually neck-and-neck.
Carroll Doherty is Director of Political Research at Pew Research Center. He gives us his analysis of the results from Iowa and their implications for the rest of the US presidential race.