VININGS, Ga. — Brad Raffensperger is fighting to save his political future as MAGA takes hold of the Georgia GOP. The secretary of state rose to national prominence by defying President Donald Trump’s efforts to overturn the 2020 election, but he is carefully trying to avoid the anti-Trump lane while he runs for governor. Instead, he’s running an old-school campaign aimed at an old-school Republican Party: He’s holding low-key events compared wi…