It's called "Leader of the Free World" and is the highest job in the political career track.

The cheat to get any job you want (keep in mind you'll have to start working on your skills ASAP when you use it) is: Press CTRL+SHIFT+C. Type in testingcheatsenabled true. Then press enter. Shift click on your Sims' houses mailbox. Select: Set Career. Click political. And voila'!

Two other helpful cheats:

1. CTRL+SHIFT+C. Type in motherlode. Press enter. Congrats you have $50,000 added to the family funds and can do this unlimited times!

2. Tired of always sending your sims to sleep and to the bathroom? Well, whenever their moodlets reach yellow have no fear! CTRL+SHIFT+C. testingcheatsenabled true. Shift click on your mailbox and click "Make All Happy." *Note: You will have to do this everynow and then. Every time you reopen the game you'll have to type the testingcheatsena... part.

WARNING: When shift-clicking the mailbox do NOT click on Force NPC...burglar or Force NPC...repoman. The repoman will take some of your stuff away and the burglar might steal your stuff if you don't have a burglar alarm.