Ans: That is why Lord Buddha became and known as 'The Light of Asia' with his Nobel Eight Fold Path as taught and preached by Lord Buddha, when he got enlighten, achieved Buddha-hood and Nirvana.
The two parts of the U.S. congress are the Senate and the House of Representatives. The head of the Senate is the Vice President (but since Vice President has other functions, there is also a leader pro tempore who represents the senate when the Vice President can't. The head of the House of Representatives is its Speaker.