Fact checking the Alberta Leaders' Debate

Experts say Thursday's Leaders' Debate didn't produce any knockout punches -- but it does warrant a replay.  It was difficult at times to pick out the difference between fact and fiction in the fast-paced head-to-head battle, but both leaders were guilty of stretching the truth.  CTV News spent some time with the debate transcript to make things a little clearer. CLAIM: "Where do you think Justin Trudeau got the idea for 'just transition' and for an emissions cap and for a carbon tax?