Simplify the following text for a Grade 7 native English-speaking person.
Original: Azmi Bishara ( , , born July 22 , 1956 ) , is a Palestinian Arab citizen of Israel who was a member of the Knesset representing the Balad party from 1996 to 2007 , when he resigned .
Simplified: Azmi Bishara ( , , born July 22 , 1956 ) , was an Arab Israeli politician . He is a Palestinian Christian and an Israeli citizen .