OTTAWA — Former BlackBerry Ltd. co-CEO Jim Balsillie doubled down on his dire warnings against the Trans-Pacific Partnership (TPP) and what he calls its failure to support Canadian innovators. “There will never be a large Canadian tech company again under TPP. Period,” Balsillie told members of Parliament Thursday morning during an appearance in front of the House of Commons standing committee on international trade. Balsillie’s testimony was part of the committee’s public consultation on the trade agreement, which is still to be ratified....