Presumably -- if they can afford it -- the Liberals have a pile of focus group research on Bill Shorten that tells them voters haven't quite worked out that Shorten is untrustworthy, semi-corrupt and dangerously left-wing, so just a little more persuasion on each of those points will seal the deal and voters will turn their backs on Labor to re-embrace the government.

Otherwise, nothing could explain why the government is choosing to focus so much on the Opposition Leader when the universally agreed problem of the government -- including by its own ministers -- is that the government appears to voters to be distracted from issues that are actually important to them.