INDIANAPOLIS -- Aides to Ted Cruz aren't holding out much hope for a victory over Donald Trump in today's Indiana primary. One aide says the campaign is preparing for "a very somber" address in Indianapolis after the results come in.

Cruz has spent the past week in Indiana, campaigning and getting the support of the state's governor. He even chose a running mate -- Carly Fiorina. But the polls continue to predict a loss.

Cruz is publicly vowing to stay in the race, regardless of the results. But the aide says campaign officials are bracing for immediate staffing cuts -- "at a minimum."

Trump has devoted more time to campaigning in Indiana than he has to most other states, underscoring his eagerness to put his Republican rival away and shift his attention toward Hillary Clinton.

While Trump cannot clinch the nomination with a big win in Indiana, his path would get easier and he would have more room for error in the campaign's final contests.

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