Complex sentence: As discord erupted among the opposition (including the SRS), Milošević called new elections in 1993 which cut the SRS almost in half, while the SPS increased its vote share from 28% to 38%.
Split into simpler sentences: As discord erupted among the opposition including the SRS, Milošević called new elections in 1993. These cut SRS support almost in half, while the SPS increased its share of the vote from 28% to 38%.