This leaflet edited by Liz Truss when she was a leading Lib Dem at Oxford University has come back to haunt her.
It asks whether cannabis should be legalised - a position the No10 hopeful endorsed then but has since U-turned on.
And she signs it Elizabeth Truss - before she decided the shortened Liz was better for her political career.
Lib Dem Treasury spokesperson Sarah Olney said: “ Liz Truss has changed her position on almost every issue.
“Just like Boris Johnson she will say anything to futher her own career.
“This country deserves so much better than another political shape shifter as next PM.”
Rival Rishi Sunak has taken every opportunity to remind Tory members that Ms Truss was once president of the Oxford uni Lib Dems.
The leaflet Orange Peel dates from 1994 and deals with undergrad issues such as housing, student debt and which crimes worry students most.
She also asks whether cars should be banned from the centre of the city.
Ms Trust did not comment.
Earlier, she declined to say whether her campaign was involved in the leaking of a video in which Rishi Sunak spoke about working to divert funding from deprived urban areas towards more prosperous towns.
The Tory leadership contender was asked during a visit to the West Midlands whether her team had anything to do with leaking her rival's controversial comments.
She told reporters: "I'm running a positive campaign.
"My campaign is about how we unleash the potential of Britain, how we get the economy going in these difficult times, how we get investment into fantastic places like the West Midlands."
