Republican presidential candidate Sen. Ted Cruz, R-Texas, waves with his wife Heidi and daughters, Caroline, right, and Catherine, during a rally at the Indiana State Fairgrounds in Indianapolis, Monday, May 2, 2016. (AP Photo/Michael Conroy) 
In this April 25, 2016, photo, Republican presidential candidate Ohio Gov. John Kasich, speaks during a town hall at Thomas Farms Community Center in Rockville, Md. Texas Sen. Ted Cruz and Kasich are having a tough time attracting establishment Republican donors even as they intensify their efforts to derail the nomination of billionaire Donald Trump. (AP Photo/Evan Vucci) WASHINGTON - Donald Trump won the Republican presidential primary in Indiana, continuing his surge toward clinching the GOP nomination over rivals Ted Cruz and John Kasich.
Trump will collect at least 45 delegates for his victory in Indiana, putting him on a solid path to clinch the nomination and avoid a contested convention.
There are still 12 delegates left to be allocated.
Trump needs to win just 43 percent of the remaining delegates to capture the nomination by the end of the primaries on June 7.
He has won a majority of the delegates allocated so far.
Trump's rivals, Ted Cruz and John Kasich, have been mathematically eliminated from reaching the 1,237 delegates needed to win the nomination before the convention. Their only hope is to block Trump and force a contested convention in which no one arrives with a majority of the delegates.
Cruz is holding an Indiana primary party inside Indianapolis's ornate Union Station, but only about a third of the available space was occupied with his backers.
The smaller than usual election night crowd Tuesday was subdued as they awaited Cruz, once breaking out into boos and chants of "Never Trump!" when a pro-Trump ad came on TV in the hall.
Donald Trump has won the state primary, clinching at least 45 delegates, putting him on a solid path to the nomination.
Cruz's campaign switched from showing televised election results on a big screen to an internal TV feed as the race was called for Trump. Country singer Dierks Bentley's song "I'll Hold On" played in the hall as his supporters chatted, ate snacks and drank.
Trump took to Twitter Tuesday, shortly after his big win which gives him a big boost toward reaching the 1,237 delegates needed to win the nomination.
"Thank you Indiana," Trump wrote. "We have won in every category. You are very special people-I will never forget!"
Trump's win dealt a big blow to rival Cruz, who had poured time and resources into the state, which is home to a significant evangelical population.