Now playing Next USA Analysis: Trump triumphs over rivals but faces uphill battle against Clinton The night of the Indiana primary will go down in history as the day to the “Never Trump” movement within the Republican Party collapsed. Just hours 04/05/2016
Now playing Next USA Kasich crashes out of race leaving Trump unchallenged for Republican nomination A day after Ted Cruz, the main challenger to Donald Trump for the Republican US presidential nomination, pulled out of the race, Trump’s only 04/05/2016
Now playing Next world news Donald Trump set for Republican nomination The Cruz withdrawal and a commanding win in Indiana means Trump has gone from long-shot contender to the Republicans' presumptive nominee. 04/05/2016
Now playing Next USA Trump is Republican presumptive nominee after crushing Cruz in Indiana Trump all but seals deal for Republican nomination Cruz drops out of race Sanders win makes little impact on Clinton lead Donald Trump has become 04/05/2016
Now playing Next USA Destination Indiana in the presidential primary trail Trump – “win in Indiana and its over for rivals Confident Clinton focuses on presidential race Cruz still hopes to block Trump winning nomination 03/05/2016
Now playing Next USA Trump and Clinton edge closer to presidential face-off as Indiana looms Republican presidential nominee in waiting Donald Trump takes a 15 point lead into Tuesday's Indiana primary, according to opinion polls. 02/05/2016
Now playing Next USA Trump jokes about protest in California Hundreds of demonstrators attempted to disrupt a Republican convention in California on Friday where presidential candidate Donald Trump was due to 30/04/2016
Now playing Next USA 'America First' - Trump outlines his foreign policy plan The US would go it alone under a President Trump 27/04/2016
Now playing Next USA Trump and Clinton register big wins in northeast primaries Trump rolls up victories in all five primaries Clinton clinches four Rivals still refusing to give up chase for delegates Donald Trump has swept 27/04/2016
Now playing Next world news "Rigged and broken" - Trump slams Republican primary system Trump slams rivals over pact to stop him Republican nomination system ‘rigged’ Cruz-Kasich deal ‘too late’ Donald Trump has described called the 26/04/2016
Now playing Next USA Trump rubbishes Republican rivals over "collusion" Donald Trump has attacked his Republican rivals for teaming up to stop him from winning the party’s presidential nomination. The front-runner in the 25/04/2016
Now playing Next USA Trump and Clinton are the big winners in New York Trump and Clinton score decisive wins in NY Both move closer to securing nominations Next stop – US northeast and five more primaries 20/04/2016
Now playing Next USA Clinton and Trump battle it out on home turf in New York primaries The road to the US presidential nominations has led to New York, with Democrat Hillary Clinton and Republican Donald Trump each billed to win on home 19/04/2016
Now playing Next USA Trump towers in New York Clinton and Sanders in tight race for the five boroughs Fighting for the Democratic presidential nomination Bernie Sanders addressed supporters in the city of his birth, New York City ahead of the states primary. 19/04/2016
Now playing Next world news U.S.: Bernie Sanders wins Wyoming as winning streak continues Bernie Sanders has secured victory in Wyoming in the latest stage of the Democratic nomination contest for the US presidential elections. It was a 10/04/2016
Now playing Next USA Wisconsin: Cruz trumps Trump, Sanders scores against Clinton Ted Cruz and Bernie Sanders shook things up in the race for the US presidential nomination ahead of what is predicted to be a tough fight in the 06/04/2016
Now playing Next USA Breakthrough for Ted Cruz as he scores a double-digit win over Trump Cruz wins double-digit win over Trump Sanders builds on his recent run of wins Clinton needs to get back on track Wisconsin primaries have 06/04/2016
Now playing Next USA Pay up or get out: Trump blasts NATO allies and Clinton responds US presidential contender Donald Trump has blasted NATO allies for not paying their fair share during a campaign rally 03/04/2016
Now playing Next USA Tensions rise between rival candidates in the US presidential race In a new row, Hillary Clinton's Democratic challenger has accused her of relying heavily on fossil fuel lobbyists 02/04/2016
Now playing Next USA US: Trump rows back after sparking abortion row US Republican presidential front-runner Donald Trump is no stranger to controversy – and now he has sparked off a spat over abortion. The billionaire 31/03/2016