Is politics a team sport or does it foster self-interest by jockeying for supremacy? How so?

Any position of power invites that.  OF COURSE.

I'm put in mind of an anonymous quote - 

'Teamwork is essential.  There must always be someone else to blame.'

((hugs)) So true! Pass the buck. That ain't my job. I only did what I was told. Thank you for your reply MrWitch and Happy Tuesday! :)