As a follow-up to this question, Ted Cruz keeps claiming that it is "mathematically impossible" for John Kasich to earn an uncontested nomination. Steven Colbert claimed that he would need 116% of the remaining delegates.
Since some votes and locked and some are not, if Rubio and Bush endorsed Kasich and the 6 uncommitted delegates from Wyoming and Louisiana went to Kasich, would it really be mathematically impossible to win the nomination uncontested?
What percentage of the remaining delegates would be needed in that scenario? And what if Cruz also dropped out or became the VP running-mate for Kasich and he and Fiorina endorsed Kasich?