Complex sentence: Two years later, he was elected president of the union, beating Jimmy McKendrick, using the post to advocate increased output during World War II, and was re-elected in 1944 with a large majority over Hugh Brannan.
Split into simpler sentences: Two years later, Moffat was elected president of the union, beating Jimmy McKendrick. He used the post to advocate increased output during World War II, and was re-elected in 1944 with a large majority over Hugh Brannan.