Poll: Trump up by 15 points in Indiana
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Republican presidential front-runner Donald TrumpDonald John TrumpWayfair refutes QAnon-like conspiracy theory that it's trafficking children Stone rails against US justice system in first TV interview since Trump commuted his sentence Federal appeals court rules Trump admin can't withhold federal grants from California sanctuary cities MORE has a 15-point lead over his closest rival, Texas Sen. Ted CruzRafael (Ted) Edward CruzThe Hill's Campaign Report: Runoff elections in Texas, Alabama set for Tuesday American Airlines reviewing photographs of Sen. Cruz on flight without a mask 4 Texas GOP congressional primary runoffs to watch MORE, just days ahead of the Indiana primary.

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Trump has the support of 49 percent of likely Republican primary voters, compared to Cruz’s 34 percent, in an NBC News/Wall Street Journal/Marist poll released Sunday morning.

Ohio Gov. John Kasich has 13 percent.

Trump leads Cruz by just 4 points in the Hoosier State, however, according to the latest RealClearPolitics average of polls.

Among Democrats, Hillary ClintonHillary Diane Rodham ClintonHillicon Valley: Wells Fargo tells employees to delete TikTok from work phones | Google, Facebook join legal challenge to ICE foreign students rule | House Republican introduces bills to bolster federal cybersecurity Biden lets Trump be Trump 4 Texas GOP congressional primary runoffs to watch MORE leads Vermont Sen. Bernie SandersBernie SandersOVERNIGHT ENERGY: EPA declines to tighten smog standards amid pressure from green groups | Democrats split on Trump plan to use development funds for nuclear projects| Russian mining giant reports another fuel spill in Arctic Biden lets Trump be Trump Democrats split on Trump plan to use development funds for nuclear projects MORE by 4 points in the new poll, 50 to 46 percent.

The NBC/WSJ/Marist poll, conducted April 26–28, has a margin of error of 3.9 percentage points for Republicans and 4.6 points for Democrats.