Barron Trump will be cast as one of Florida’s at-large delegates when the Republican National Convention takes place this summer, NBC News reported. When the three-day event kicks off on July 15 it will feature former President Donald Trump’s youngest child playing a significant role to be alongside his older siblings to formally welcome their father as the Republican candidate to rival incumbent President Joe Biden. “We have a great delegation of grassroots leaders, elected officials and even Trump family members,” Florida GOP chairman Evan Power told the outlet, after they received a list of…