“why would they cross over and vote for him?”
Becasue the main Democrat candidates were running unopposed, and to punish Trump. People were crying about it all day long on FREEP.
So they cross over and vote for a guy (Kemp) who is FAR AHEAD in the polls and is almost certain to beat Abrams?
That doesn't compute.
I wasn't
I wanted Kemp to win because he ended lockdowns very quickly, despite vicious attacks from the media and the Dems.
Republican voters just rewarded him for that.