10/18/2015 14:31 EDT | Updated 10/18/2016 01:12 EDT

Stephen Harper has lost the moral authority to govern, says former PMO lawyer

MISSISSAUGA, Ont. — The former lawyer for the Prime Minister's Office says Stephen Harper has lost the moral authority to govern, and he's voting for change this election.

Benjamin Perrin says in a statement that based on what he's personally seen and experienced, he felt there was no other choice but to abandon his lifelong Conservative vote.

Perrin worked in the PMO back in 2013, and was part of the staff that dealt with the scandal surrounding Sen. Mike Duffy's contested living expenses.

But Perrin very publicly broke ranks with the government this August when he testified at Duffy's fraud and breach of trust trial.

He said that Harper's most senior aide Ray Novak was told about former chief of staff Nigel Wright's secret repayment of Duffy's $90,000 in expenses.

Novak, who currently works as a senior campaign director, has denied that, and Harper has backed his version of events.

Perrin is a University of British Columbia law professor, and is currently on parental leave.

Jennifer Ditchburn, The Canadian Press

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