With Trump’s poll numbers starting to show signs of weakness, he went after strong-showing Cruz and his birther status. Cruz was born in Canada but is automatically naturalized because of his mother’s status.
“If you become the nominee, who the hell knows if you can even serve in the office?” Trump said.
Cruz also suggested that Trump, who last September dismissed the issue of his eligibility, was motivated to attack him because of his rising poll numbers.
“Since September, the Constitution hasn’t changed, but the poll numbers have,” Cruz said.