Complex sentence: However, as West German citizens, West Berliners were able to stand for election, such as Social Democrat Chancellor Willy Brandt, who was elected via his party's list of candidates.
Split into simpler sentences: However, as West German citizens, West Berliners were able to stand for election in West Germany. For example, Social Democrat Willy Brandt, who eventually became Chancellor, was elected via his party's list of candidates.