Story highlights Donald Trump predicted that a win in Indiana would end Ted Cruz's chances of defeating him

Trump said he'll have Bernie Sanders' attacks on Hillary Clinton "teed up" to use in the general election

Indianapolis (CNN) Donald Trump says if he defeats Ted Cruz in Indiana, he'll seal the Republican presidential nomination.

"Yes, it's over," Trump said on "Fox News Sunday" when host Chris Wallace asked if a win in the Hoosier State Tuesday would end Cruz's chances.

Trump is the front-runner in Indiana, according to a new NBC/Wall Street Journal/Marist poll that shows him leading with 49% compared to 34% for Cruz and 13% for Ohio Gov. John Kasich. Tuesday's primary has 57 delegates on the line.

Trump pointed to Indiana Gov. Mike Pence's endorsement of Cruz, noting that it only came after Pence lavished praise on Trump in an Indianapolis radio show appearance.

He said that Pence "gave me more of an endorsement than he gave Cruz," and said Pence's decision to back Cruz was influenced by "his donors and special interests."

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