Milton Friedman has been described as "the most influential economist of the second half of the 20th century ... possibly of all of it." He was an advisor to President Ronald Reagan and Conservative British President Margaret Thatcher. He was a proponent of free markets and in 1976 won the Nobel Memorial Prize in Economic Sciences.
He explains in the video below that the structural problems within our federal government cannot be solved with a change in personnel. Only constitutional amendments can bring about the necessary reforms to turn our country around.