Going off of the Wikipedia images of the 9 nominees of various parties, one notices a trend in their facial expressions. From the least "experienced" to the most, here is how they appear to me:
I got something to say, and something to learn.
The things that make me happy no longer do.
At least I'm certain about this one thing.
Ow, ow, ow, I have to be better than you.
Holy shit another day of this?
Hey, someone is looking at me!
Is it time to make the smile face now?
As we all know, "holy shit another day of this" is going to win, which is the best one until "I got something to say and something to learn" who don't propose to poison the world any more.