Former President Donald Trump’s eldest son, Donald Trump Jr., went after Senate Minority Leader Mitch McConnell during a campaign event in South Carolina after his father said he “wasn’t sure” if he could work with the 82-year-old senator, RadarOnline.com has learned. According to the Daily Mail, the incident took place at the Trump campaign’s South Carolina headquarters in North Charleston, where Trump Jr. openly criticized Republicans who supported funding Ukraine’s defense efforts against Russia. He even hinted at having someone specific in mind for McConnell’s potential replacement. “I cal…