Yes. A number of people should run, for the experience, so when it is really their time, they will be ready.
No. Trump is the presumptive nominee, his win was stolen in 2020 and anyone else running in the Republican primary is admitting they don’t believe 2020 was stolen.
if it’s truly their time, they don’t need practice sessions, God will get them in and help them along - just as He did for Trump.
Trump didn’t always follow God’s word or lead, but Trump did a wonderful job having never been in political office before and running and then dealing with many difficult situations with countries etc.
Not perfect, but Trump did lots of good for people around the world.
God will do that for another person if He so chooses.