What are some of the current radical political views in the US today?

The radicals today are those who wish to restore the true America of the Founders and oppose the status quo of big government tyranny embraced by the "Progressives" of the Democratic Party, the "Progressive" Republicans such as David Frum and Meghan McCain, and the big government Neo-Cons of the Restore Bush movement (led by Sarah Palin and Dick Cheney).

The true radicals in today's America are those who oppose socialism and our foreign policy that fails to put America First. The true radicals are those who stand for laissez-faire capitalism, states rights, and putting America First in foreign policy (no more undeclared wars, no more entangling alliances, no more foreign aid). I am NOT a "conservative" and I do NOT wish to be associated with the "conservatives" who wish to "conserve" socialist tyranny.

Communism, Anarchism, Fascism, Theocratic Dictatorialism, New World Order theorism, etc.

Nothing now because Washington has to close today. That is good news. Under Obama, he spent $1 Billion a day. Obama said today that we are losing $100 Million today. What a liar, which is better save Billion dollars or worry about losing 100 Million dollars?

According to the U.S. government, people who believe in the Constitution are radicals.

Just google the tea party. They are radical right and quite funny.

I can think of nothing more radical than supporting and re-electing a liberal dem.

What do you mean by "radical"?