1Sa 8:4 Then all the elders of Israel gathered together and came to Samuel at Ramah;
The warning by God about the abuse and mistreatment Saul (who by the way would enact socialism--take from property owners and give to others; and a bit of Communism: determine the professions of the people) would enact over the people wasn’t enough to steer them back to God’s way:
1Sa 8:18 "Then you will cry out in that day because of your king whom you have chosen for yourselves, but the LORD will not answer you in that day."
So, in a nutshell, honesty, fairness, righteousness, justice, loyalty, fearing God and His name, not a youth, not a woman, terror for bad conduct not good, no drinking wine or beer are required. When Evangelicals say "we're not voting for a pastor" when justifying electing a "lesser evil", they need to consider if these requirements are similar to those for being a pastor (minus the government ability to reward good behavior/punish bad behavior--and take in taxes).