Trump was conciliatory at his victory rally, saying he understands "the responsibility" of leading the Republican Party.
He has called him "a hater of Donald Trump."
Trump appeared on ABC's "This Week" and NBC's "Meet the Press."
"Thank you Indiana, we were just projected to be the winner," said Trump.
This is the last chance for Cruz.
Cruz is already mathematically eliminated from reaching a delegate majority.
English21/03/2016
Trump demands GOP embrace him
"If people want to be smart, they should embrace this movement," Trump said.
Rubio is the decided underdog to the billionaire businessman in Tuesday's contest.
Rubio won the caucuses in Minnesota and the party's primary in Puerto Rico.
English11/03/2016
Ben Carson endorses Donald Trump
The retired neurosurgeon called the billionaire businessman "very cerebral."