On Monday, a memorandum surfaced, obtained by The Associated Press, showing that Austan D. Goolsbee, a professor of economics at the University of Chicago who is Mr. Obama’s senior economic policy adviser, met officials last month at the Canadian consulate in Chicago.

According to the writer of the memorandum, Joseph De Mora, a political and economic affairs consular officer, Professor Goolsbee assured them that Mr. Obama’s protectionist stand on the trail was “more reflective of political maneuvering than policy.”

It also said the professor had assured the Canadians that Mr. Obama’s language “should be viewed as more about political positioning than a clear articulation of policy plans.”