Simplify the following text for a Grade 10 native English-speaking person.
Original: Bishara has been a Knesset member ever since the fourteenth Knesset ( first seating June 17 , 1996 ) and `` was a key founder of the political party that he represents in the Knesset , the National Democratic Assembly ( NDA-Balad ) . ''
Simplified: Bishara was a Knesset member from the fourteenth Knesset ( first seating June 17 1996 ) until April 22 , 2007 . He was the most important member of his political party , the National Democratic Assembly ( NDA-Balad ) in the Knesset during this time .