Almost no one in power in the USA is actually low taxes and low spending. Maybe a few libertarians scattered throughout the country that managed to get a seat but they're a very small minority.
Everyone is all about high taxes and high spending. It's just "high taxes for thee but not for me". So, for instance, republicans will repeal taxes on the rich and large corporations even when we already tax the middle class W2 earners more than the rich already. Similarly, republicans are huge for the MIC. So much for being fiscally conservative when they want to spend literally hundreds of billions of dollars on a stupid boondoggle airplane that no one gives a shit about.
Democrats have the same issues. They also have a hardon for the MIC and spending on stupid shit. The dems in SF will spend it on stupid trashcans or whatever nonsense that doesn't move the bar at all.
They will tax the hell out of the working class and spend the money on shit that doesn't improve the material conditions of everyday people. It's why we can't have healthcare. Both parties have no interest because that doesn't make their lobbyists money.
Given that Wyoming makes up around 0.2% of the US population, I guess the original claim that "almost[!] no one in power in the USA is actually low taxes and low spending" might be pretty reasonable.
The whole area is incredibly classically liberal and not socialist leaning at all... After all - becoming a tycoon is everyone's wet dream there.