Complex sentence: He was reelected to the Senate in 1982 and 1988, but did not seek re-election in 1994, after his involvement in the Keating Five scandal was revealed to the public.
Split into simpler sentences: He was reelected to the Senate in 1982 and 1988. He did not seek reelection in 1994, after his involvement in the Keating Five Scandal was revealed to the public.