Sen. Pamela Wallin may have to repay $140,000 after audit results today

Updated at 1:35 p.m. (EST)

It's judgement day for Senator Pamela Wallin and the judgement is...she better get out her chequebook.

On Monday morning, three members of the Senate's internal economy committee, were presented with the long-awaited Deloitte audit into the Senator's travel expenses.

While details of the document have not yet been made public, media have sourcing leaks.

On Twitter, CTV News' Daniele Hamamdjian is reporting that Wallin must repay between $121,348 and $142,236 which includes expenses falsely claimed for Tory fundraising and private business interests.

CBC's Chris Hall notes that the senators learned that Wallin tried to retroactively amend her expense reports after the audit had begun.

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The trio of senators, known as the steering committee, will now spend the day drafting a report with regard to a course of action against the former Conservative and now independent senator. They'll reconvene with the full internal economy committee this evening at 5:30 p.m. (EST).

Then, on Tuesday, that report will be made public and we should get confirmation about exactly how much money Wallin owes and whether or not her file will be forwarded to the RCMP.

[ Related: Senator Pamela Wallin says she's too busy to vote ]

The audit was commissioned by Senate officials in late 2012, after Wallin’s travel claims totaled almost $375,000 over a three-and-a-half-year period.

In an interview with CBC News in June, the much-maligned Senator admitted to making mistakes.

"[Travel expenses] that should have been charged to a third party weren’t. It was just kind of going through the Senate system as it always had for many years," she said.

"I didn't deliberately set out to abuse this system in any way. In fact I thought I was being pretty rigorous but I actually wasn't being rigorous enough. And that's on me and I am going to try and make that right if I can."

To date, Wallin has repaid $38,000.

[ Related: Senator Wallin speaks: The media and the Twittersphere react ]

It's looking as if the audit results will be yet another blow to the reputations of both Wallin and the upper chamber.

As explained by the Globe and Mail's political editor Ryan MacDonald, it's also bad news for Stephen Harper and the Conservatives.

"The government built its brand on fiscal discipline and cleaning up the ethical scandals that plagued previous Liberal governments," he said in a video blog on the Globe website.

"Now three words 'Senate spending scandal' have threatened that brand. The only question that remains is how much damage has been done."

It may be the dog days of summer but this is shaping up to be an interesting week.

(Photo courtesy of the Canadian Press)

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