A good project manager must always rise above petty political partisanship and keep fighting for what is right and best for their project, the project sponsor and the funding organization.
More free advice and personal thoughts...
Never use fabrications, slander, and distortions to sell the value of your project
Never tear down another organization (or person) to build yours (yourself) up
If you aren't visible you aren't relevant. If you aren't relevant you aren't needed
Never pretend to be something that you are not. You can only fool another fool
Never be so cocky as to believe you have nothing to learn from others
If you haven’t learned from the mistakes of the past you are probably already repeating them
If you are not honest, ethical, and trustworthy you can’t be effective at anything except politics
Taking others people's ideas and repackaging them as your own is pathetic, dishonest, and just plain sad
The value of your project’s product can only be judged by end-users, not you
Your reputation is determined by others, not you
Product bells and whistles rarely add value. They usually end up in a product because the designer was lazy and without imagination.
Surround and marginalize your critics. Don't let them define who you are.
Beware of Project Snakes and Sharks. They can wear pants or skirts.