Former President Donald Trump has elevated his son Donald Trump Jr. to an unofficial new role inside his orbit as he weighs the idea of a comeback presidential bid in 2024 that would require him to maintain a vice grip on the Republican base for any chance of success.Former President Donald Trump has elevated his son Donald Trump Jr. to an unofficial new role inside his orbit as he weighs the idea of a comeback presidential bid in 2024 that would require him to maintain a vice grip on the Republican base for any chance of success.