John Kasich thinks families should be 'off-limits' in campaign attacks

Republican presidential contenders Donald Trump and Ted Cruz have been sparring over their wives all week. On Sunday, opponent Ohio Gov. John Kasich (R) called for an end to it on NBC's Meet the Press.

"Families have to be off-limits. I mean, you cannot get these attacks on families," he said. "And if this becomes the order of the day, what kind of people are we going to have in the future that are going to run for public office?"

Kasich, who has previously said he would support Trump if he were to become the Republican Party's nominee, told host Chuck Todd he'll review that choice every day as the election progresses.