It would be a good thing for the federal Liberals if O'Leary wins the Con leadership.  O'Leary would get 0 votes in Quebec, New Brunswick and other french speaking areas.  And by the time O'Leary appears on the stage we will have all seen Donald Trump in his full 140 character glory tweeting his diplomatic ignorance and will be gun shy of a Trump in Canada.  I'd be more worked about Chong or other Progressive Conservatives that could really do damage to the Liberal cause.