Final answer:
The politician would support a free trade deal if the Americans accept an impartial dispute-settling mechanism.
Step-by-step explanation:
A politician states that an impartial dispute-settling mechanism is necessary for a free trade deal between Canada and the United States. The interviewer asks if the politician would support a free trade deal if the Americans accept such a mechanism.
In response, the politician implies that they would support a free trade deal if the Americans agree to an impartial dispute-settling mechanism. This shows that the politician believes the presence of a fair resolution process is vital for a successful trade agreement.