"First of all, Donald was a supporter of amnesty and of the DREAM Act and he changed his position on those issues just to run for president.
"Immigration is a very legitimate issue.
"We're not going to be able to pass a comprehensive approach to the immigration problem. The votes don't exist.
"We tried that two years ago. The votes aren't there. Even less now after two unconstitutional executive orders, after the migratory crisis on the border," Rubio said.