Complex sentence: At Yale, he was an editor of the "Yale Law Journal" and the "Yale Daily News", was a member of the Yale Debate Association, and earned a Truman Scholarship in his junior year.
Split into simpler sentences: At Yale, he was an editor of the "Yale Law Journal" and the "Yale Daily News". He was a member of the Yale Debate Association, and earned a Truman Scholarship in his junior year.