US Election 2016 Betting: Iowa Caucus flip-flops show the perils and potential of primary betting

The markets suggest Donald Trump is edging out Ted Cruz in Iowa

The race for the US Presidency begins in earnest on Monday, with the Iowa Caucuses opening the process to decide the Republican and Democrat nominees. As Paul Krishnamurty explains, these initial contests have a long history of producing dramatic betting heats and some massive shocks.

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"This is one of the many great aspects of betting on US elections. Unlike the UK, where we have to wait for all votes to be counted before a result is announced, here they appear on a real-time scoreboard as each county or district declares. All of this is visible online or on TV channels like CNN and Betfair markets react accordingly, fast."