Comments once dismissed as "trolling", "musing" or "Trump just being Trump" have taken on more serious overtones as the U.S. president-elect persists in talking about having Canada join the United States. After a month of what was initially waved off as "silly talk", the narrative is creating significant anxiety among Canadians, and bemusement among the few Americans actually aware of the situation. A cross-border study conducted by the non-profit Angus Reid Institute finds that while one-in-three Canadians (32%) believe Donald Trump is serious in his professed goal of making Canada the 51st state, most Americans – two-thirds – have paid little attention to the incoming president's comments. Do you believe Trump is serious about having Canada join the U.S.?

When it comes to appetite for such a "merger" – Americans are twice as likely to oppose (49%) Canada joining their nation than support it (25%). The idea has little to no traction at home – except among Conservatives. Do you want Canada to join the U.S.?

Only one-in-10 Canadians overall say they would vote to join the U.S. in a referendum. If Canada does join, three-quarters (77%) of Americans say it should only be by our own choice, as opposed to the result of pressure (5%) or military force (1%). Do you agree it should be Canada's choice?