Serve Your Country Rather Than Your Party
Stop campaigning immediately (most politicians permanently campaign, even after they are elected). Serve your country rather than your party. Stay human: listen to people who keep your feet on the ground (encourage your wife and kids to play this role). Keep in touch with Elders who are outside the power structure. Ask people you trust how you are changing (good and bad). Notice powerful forces that pressure you to be secretive and lie. Be open enough and tell the truth enough that your most powerful advisors will feel uncomfortable. Solicit input from opposing views. Think 7 generations ahead.