Jess Wilson has barely put a foot wrong since becoming Victorian Liberal leader a little under a year ago. That was until this week, which ended with her campaign bus reversing into a small business .

The bus was launched on Friday, a few days earlier than planned, in what appeared to be an effort to reset Wilson’s relationship with the Spring Street press pack.

A day earlier, journalists had been left waiting for an hour as Wilson announced a $100m investment in medical research to an enthusiastic room of researchers at the Burnet Institute. But when it came to questions she stayed for just four minutes and 39 seconds – answering a single question from each of the nine journalists present before cutting the press conference short.

The pack had been keen to press Wilson on Labor’s claim that the Coalition’s election policies would cost $6.35bn more than they had disclosed.

The treasurer, Colin Brooks, had earlier spent 20 minutes taking journalists through a glossy booklet Labor titled “Jess Wilson’s…