Donald Trump Jr. aims to have veto power over 'RINOs' if his father is re-elected as president, vowing to prevent those he deems insufficiently conservative from gaining power. He envisions a role in influencing appointments to key positions to maintain the 'America First' agenda. Trump Jr. supports JD Vance as a potential carrier of his father's legacy, praising his anti-establishment stance and media resilience. Despite his significant influence, Trump Jr. expresses no interest in an official government role if his father wins a second term.