Marco Rubio appeared to lose patience when asked whether Donald Trump may lose his vote. | AP Photo Rubio: I still believe Trump can't be trusted with the nuclear codes

Sen. Marco Rubio is sticking by his former attack line that Donald Trump can't be trusted with the nuclear codes, despite having previously come around to support Trump as the nominee.

In an interview with The Weekly Standard, Rubio reaffirmed his statement from February — when he was still in the throes of a nasty primary battle — that America can't give "the nuclear codes of the United States to an erratic individual."


"I stand by everything I said during the campaign," Rubio said on Thursday.

Rubio's wobbly support of Trump comes after the presumptive Republican nominee's comments about Judge Gonzalo Curiel's Mexican heritage have caused a number of Republican lawmakers to rethink their endorsements of the billionaire.

Rubio also recently walked back his prior pledge to speak on Trump's behalf at the Republican National Convention, saying last Monday that he would only talk about his own beliefs, and not as part of Trump's platform.

On Thursday, Rubio appeared to lose patience when asked whether Trump may lose his vote. "I don't have anything new to add from what I've already said. I've talked about it all week long," he said.