US election 2016: Trump and Clinton seek Indiana wins

People in the US state of Indiana are voting in primaries, with Donald Trump and Hillary Clinton hoping to extend their leads as they seek the Republican and Democrat presidential nominations. Correspondents say Mr Trump will be virtually unstoppable if he wins there. Rival Ted Cruz said he was relying on Indiana voters to turn the tide of the election. Meanwhile in the Democratic battle, Hillary Clinton holds a commanding lead over Bernie Sanders. Mr Trump is hoping that a victory in Indiana will put him within reach of the 1,237 delegates needed to guarantee him the Republican nomination, and allow him to turn his attention to the general election. "You know if we win it's over, and then I can focus," he said at a campaign rally in the state on Monday night. Donald Trump at campaign stop in Indiana - 2 MayImage copyrightAP Image caption Mr Trump said he was confident of victory Mr Cruz cannot get enough delegates to win the nomination outright, but hopes he can still deprive Mr Trump of a majority. He has thrown considerable resources into the state in recent days. Polls show Mr Trump has a commanding lead, but Mr Cruz said he felt confident voters would back him. "Indiana is in a position to decide the direction of this race, not just for Indiana, not just for the Republican party, but for the entire country," he told supporters in the state. "I think... the country is depending on Indiana to pull us back from this cliff." Grey line Ted Cruz campaigning in Indiana - 2 MayImage copyrightAP Image caption Mr Cruz is hoping to stop Mr Trump in his tracks in Indiana At the scene: Anthony Zurcher, BBC North America reporter Indiana was supposed to be where Ted Cruz stopped Donald Trump's recent east coast winning streak. Instead the primary on Tuesday could prove his final undoing. A Monday afternoon campaign event in the tiny town of Marion, Indiana (population 29,000) gave a taste of what Mr Cruz is up against. It was supposed to be a feel-good gathering, the candidate's first public appearance with Mike Pence since the Indiana governor had thrown his support behind the Texan last week. That was before a small knot of Trump supporters began heckling Mr Cruz from across a street. Is Indiana Ted Cruz's last stand? Grey line The third Republican candidate, John Kasich, is no longer campaigning in Indiana. He and Mr Cruz reached a deal last month to coordinate their strategies against Mr Trump, a move which prompted Mr Trump to label them "desperate". In the Democratic race, poll suggest a comfortable victory for Mrs Clinton over Mr Sanders. She currently has 91% of the delegates needed to win the nomination.