Original sentence: During his student years he was active in student politics as a radical Christian, and for a time was a member of the youth wing of the Australian Labor Party, but after graduating he rapidly became more conservative, while retaining liberal views on some social issues
Edited sentence: During his student years he was active in student politics as a radical fundamentalist Christian, and for a time was a member of the youth wing of the Australian Labor Party, but after graduating he rapidly became more conservative, while retaining liberal views on some social issues