Some senators silent over questions of spending, residency

Twenty-five senatorshave either refused to prove to CBC News that they live where they claim to orhaven't responded to questions,asa senate probe into their residency and allowances goes on.

CBC's James Cudmore asked each one of 104 sitting senators toanswer:

• Where they live.
• Where they hold a driver's licence and health card.
• Where they pay taxes.
• Where they vote.

As of Tuesday, 5 p.m. ET, 96 senators hadresponded to the CBC's queries.

Once contacted, 17 senatorssimply refused to provide the information requested.Sixteen of those senators were Conservative, and15 were appointed by Prime Minister Stephen Harper.Among those who refused:

• Conservative Donald Oliver,appointed by then-prime minister Brian Mulroney.
• Former broadcaster Pamela Wallin.
• Former broadcaster Mike Duffy.
• Hockey legend Jacques Demers.
• Former Quebec Conservative campaign co-chair Suzanne Fortin-Duplessis.
• Former N.W.T. premier Dennis Patterson.
• Former New Brunswick Conservative cabinet minister Rose-May Poirier
• Former Montreal Canadian Alliance and laterAction Dmocratique du Qubecorganizer Leo Housakos.

A furthersix Conservatives have yet to respond at all. All of those are Harper appointees, including:

• Larry Smith,the former head of the Canadian Football League, who was twice appointed to the Senate, the second time after he resigned from the Senate to run for the House of Commons and lost.
• Irving Gerstein, a Conservative party fundraiser.

That means a total of 21 Conservative senators appointed by Stephen Harper have either refused or not furnished the residency data to CBC News.

One Liberal refused

Twoof 36 Liberal senatorshaven't responded to the request. Trudeau appointee Pierre De Banrefused to turn over the information, buttold CBC News he lives in Ottawanot in the Quebec riding he was appointed to represent. De Ban says he doesn't claim the living allowance.

Liberal Senator Mac Harb, who is under fire now for racking up Senate travel and living expenses,didn't respond at all. Harb was an Ottawa city councillor from 1985-1988, then represented Ottawa Centre the riding in which Parliament Hill sits asa member of Parliament until he was appointed to the Senate in 2003.

Two Conservative senators who sit on the Senate committee reviewing the residency and expenses of senators have also refused to disclose key residency issues to CBC News.

Despite repeated requests over two weeks, Smith and his Senate caucus colleague Claude Carignan have refused to reveal in which province each holds a driver's licence and health card, pays provincial income tax, and votes. The other 13 members of the committee have provided that information to the CBC, including the seven other Conservatives.

Five senatorsare expected tobe called before the Senate committee auditing housing allowances to answer more questions:

• Patrick Brazeau, appointed from Quebec.
• Mike Duffy, appointed from P.E.I.
• Mac Harb, appointed from Ontario.
• Dennis Patterson, appointedfrom Nunavut.
• Pamela Wallin, appointed from Saskatchewan.

Duffy to repay expenses

Patterson refused to answer questions from reporters Tuesday as he left a committee on Parliament Hill. He said he's co-operating with the review process.

Last week,Duffy told CBC News that he would pay back the expenseshe'd claimed for his housing because questions about the issue were distracting peoplefrom his work. Wallin has reportedly decided to do the same.

Both Liberal and Conservative leaders in the Senate have said they expect anyone who can't back up their expense claims to repay the money.

Duffy is the only federal politician in P.E.I. who does not receive a special residents-only tax break. According to tax information obtained by the CBC, all three other senators, and four elected MPs, receive the provincial credit.

Senator Patrick Brazeau, who is also under scrutiny for his expenses, did respond to questions and provided the informationrequested.

Brazeaulists his primary residence as Maniwaki, even though the address listed onhis driver's licence shows he lives in Gatineau, the city across the river from Parliament Hill.

Brazeau currently faces charges of assault and sexual assault in an unrelated matter.