1Peter 2:13,17

Be subject for the Lord's sake to every human institution, whether it be to the emperor as supreme, Honor everyone. Love the brotherhood. Fear God. Honor the emperor.

Every president we've had is by the will of God. Our job is to pray for & honor them in our reverence of God, as His chosen vessel to lead our nation.

This doesn't mean we agree with every decision they make, but it does mean not to dishonor them. Being one nation under God starts with you & me, by doing our part to love one another & by being a good citizen.