Now that the Republican National Convention — with its promise of “unity” is in the rearview mirror, — Donald Trump is back to being the Donald Trump of old with a rambling rant on Saturday morning. Just days after cable TV pundits lauded the former president for being humbled and changed after the attempt on his life just a week ago, the former president once again lashed out about his legal problems and accused the Biden administration of conspiring against him. ALSO READ:’Painfully small’ turnout for MTG book signing as MAGA fans give her the cold shoulder In Trurh Social he wrote, “We are …