The National Post reports in its Monday edition that a year has passed since most provinces banned U.S. alcohol from liquor store shelves, causing issues in United States-Canada relations. A Postmedia dispatch to the Post reports that the topic resurfaced recently as a big point of contention, with only Alberta and Saskatchewan still allowing U.S. alcohol. With a high-stakes review of the Canada-U.S.-Mexico Agreement set to begin July 1, Ontario Premier Doug Ford and the other provinces that followed his lead in banning U.S. alcohol may have handed Canada a useful bargaining chip -- or given the U.S. a useful talking point. Testifying before a Senate Appropriations subcommittee last month, U.S. Commerce Secretary Howard Lutnick blasted Canada over the alcohol bans. "It is outrageous that Canada will not put U.S. spirits on the shelf. It is insulting and disrespectful to America," Mr. Lutnick said. U.S. Trade Representative Jamieson Greer said the U.S. has been pressing the Canadian government to reverse the provincial bans, adding last month that it is "at the end of our rope with just asking them to do this." Mr. Ford says it is insulting that the U.S. is "targeting our auto sector, steel, aluminum, dairy and lumber."