As Written in the 1928 Book of Common Prayer
A Prayer for The President of the United States,
and all in Civil Authority.
O LORD, our heavenly Father, the high and mighty Ruler of the universe, who dost from thy throne behold all the dwellers upon earth; Most heartily we beseech thee, with thy favour to behold and bless thy servant THE PRESIDENT OF THE UNITED STATES, and all others in authority; and so replenish them with the grace of thy Holy Spirit, that they may always incline to thy will, and walk in thy way. Endue them plenteously with heavenly gifts; grant them in health and prosperity long to live; and finally, after this life, to attain everlasting joy and felicity; through Jesus Christ our Lord. Amen.
Or this.
O LORD our Governor, whose glory is in all the world; We commend this nation to thy merciful care, that being guided by thy Providence, we may dwell secure in thy peace. Grant to THE PRESIDENT OF THE UNITED STATES, and to all in authority, wisdom and strength to know and to do thy will. Fill them with the love of truth and righteousness; and make them ever mindful of their calling to serve this people in thy fear; through Jesus Christ our Lord, who liveth and reigneth with thee and the Holy Ghost, one God, world without end. Amen.