Duffster puff

I know everyone is hyping the Duffy trial, but I think its likely going to be a big pile of nothing.
For the life of me, I cannot see how Harper will be tainted by this. Basically, Harper and his aides can argue that they did the right thing for Canadians by firing Duffy and Wallin as soon as their misdeeds were revealed.
Yes, of course, it makes no sense at all:

Defence lawyer Donald Bayne made much of the fact Mr. Duffy is charged with bribery in connection with the $90,000 he received from Mr. Wright, while the former Harper aide was not charged for providing the money.
“I am sure that I am not the only Canadian who will now wonder openly how what was not a crime or a bribe when Nigel Wright paid it on his own initiative became, however, mysteriously, a crime or bribe when received by Senator Duffy,” the lawyer said. “The evidence will show that Senator Duffy did not want to participate in Nigel Wright’s and the PMO’s repayment scenario, which they concocted for purely political purposes.”

But conveniently, Wright isn't on trial for anything.
So whether Harper knew or approved the payment in advance is not actually relevant to Duffy receiving it.
Given the long reach of the Harper PMO, there is no reason why anybody would want to testify to this effect except maybe Duffy himself -- and he would have done the Big Reveal already if he had had any evidence.