It says it on a bag, so it must be true.
1. Be crafty
2. Intimidate opponents
3. Watch your back
4. Be independent...
5. ... but work with colleagues when you have to
6. Be persistent...
7. …. even when out campaigning in bad weather
8. Be loyal and never forget your helpers
9. It’s important to be photogenic…
10. … so take good care of your grooming
11. Grumpy is only rarely a winner…
12. … so get your sleep in
13. Sometimes it’s worth getting on with your sworn enemies...
14. ...but when you fight, fight to win
15. Remember, don't get caught on camera
16. And when it all goes wrong, run away.
(Of course if you want some advice from humans instead of cats, there's always 101 Ways To Win An Election.)