Conversation so far:
how was Billy Hughes as prime minister?
allowed the Nationalists to convey an image of national unity.
At the same time, he became and remains a traitor in Labor histories.
what did he do to be a traitor?
CANNOTANSWER.
what were some things he did as Prime Minister?
At this election Hughes gave up his working-class Sydney seat.

Question: what's some interesting thing as Nationalist Party Prime Minister?
Self-contained rewrite: what's some interesting thingsthat happened when Billy Hughes was the Nationalist Party Prime Minister?