If by some chance a referendum on four-year terms were held, one of the rallying cries of its opponents would be the offensiveness of giving eight-year terms to the party hacks who populate the Senate. Hawke's 1988 referendum tried to meet that by abolishing rotation in the Senate, giving them all four-year terms as well, but that didn't capture the public imagination either.

This is a topic that's easy to get confused about, despite the careful research of people like Scott Bennett, so it's worth going through it carefully.