Complex sentence: She was re-elected as a CRÉE candidate in the 2003 elections, in which MÉMO was returned to power with a landslide majority; she served in opposition for the next four years and did not seek re-election in 2007.
Split into simpler sentences: She was re-elected as a CRÉE candidate in the 2003 elections, in which MÉMO won a landslide majority. After serving in opposition for the next four years, she did not seek re-election in 2007.