Easily Charlie Baker as he would probably be able to make Nevada and Colorado competitive again, and could put Democrats on defense there. There's also a sizable faction of moderate Democrats who could vote for him.
No, he couldn't-he'd simply lose them by single digits instead of double. The presumed benefit of an east coast moderate GOP is keeping PA, NH and ME competitive and hopefully doing well enough in sunbelt suburbs to hold on to FL, NC and TX (Georgia will go blue after 2 terms of Trump)
GA blue? I thought the GOP supposedly was rigging elections there. lol