Interesting: A Scientist for President? (Mexico).

[eppur_se_muova]

2. I've always worried that scientists might not make good politicians, because of The Amazing Randi's warning ...

that scientists are used to questioning Nature, and Nature does not lie. Not necessarily good preparation for dealing with politics, where all is opinion anyway, and much of it unfounded or knowingly untrue. He often debunked pseudoscientific charlatans who had managed to fool a few scientists because the scientists just weren't prepared to deal with deliberate deception.

It will be interesting to see how well an environmental scientist fares -- much of environmental work is activism, in addition to weighing facts, so maybe (fingers crossed) that's better preparation.