With the recent retirement of Vern Ehlers and unfortunate defeat of Bill Foster, there is now exactly one scientist in the entire 535 member US Congress, New Jersey's Rush Holt. Depending on how wide we define engineering, there is also one engineer, California's Jerry McNerney.
Contrast this with Congress containing well over 200 lawyers, a large number of small business owners, and even 15 medical doctors, and we see that scientists and engineers are vastly underrepresented in our Congress, as well as throughout elected office all over the country.
Given that all of our serious challenges have a scientific or technological component, and that half of all economic growth over the past century can be attributed to technological advancement, and that the US is rapidly losing its scientific and technological edge, this lack of scientists and engineers in government is a serious problem for our country.