Ted Cruz engaged in an extended back-and-forth with a Donald Trump supporter during a campaign stop in Indiana, with the sunglasses-wearing man taunting Cruz to "do the math" and accept that the real estate mogul will win the Republican nomination.The tense interaction, which was broadcast in its entirety by MSNBC on Monday, showed the Texas senator being confronted by supporters of the Republican front-runner a day before voters head to the polls in the state, a crucial contest for Cruz's faltering viability."We don't want you," a man says, as Cruz responds, "Well, you’re entitled to your view, sir, and I will respect it."Appearing with Indiana Gov.