The endorsement criteria for candidates must be for US citizens

Former GOP hopeful Vivek Ramaswamy unveils 'American Truth Pledge' criteria for candidates seeking his support in races across the country. Their'moral duty' must be to US citizens, he says, and their "moral duty" should be to their country.

Republican presidential candidate Vivek Ramaswamy says he and former President Donald Trump are the only "America First" candidates. He says there are only two 'America First' presidential candidates in the race for the GOP in Iowa. He said he and Trump are only the only two candidates who want to be America First.