Original sentence: At university Leech joined the Liberal Democrats though he wasn't too involved with them until he was himself a candidate.John went to Manchester Grammar School, Loretto College (Moss Side) and Brunel University where he studied for a history and politics degree
Edited sentence: At university Leech joined the Liberal Democrats though he didn't do much work for them until he was himself a candidate.John went to Manchester Grammar School but didn't stay there for the sixth form, Loretto College (Moss Side) and Brunel University where he studied for a history and politics degree