Complex sentence: First, Demirel continued the coalition with the Nationalist Front, but in 1978, Ecevit was able to get to power again with the help of some deputies who had shifted from one party to another.
Split into simpler sentences: First, Demirel continued the coalition with the Nationalist Front. But in 1978 Ecevit was able to get to power again with the help of some deputies who had shifted from one party to another.