David Shribman is the former executive editor of the Pittsburgh Post-Gazette and winner of the Pulitzer Prize for coverage of U.S. politics. He teaches at McGill’s Max Bell School of Public Policy.

Mr. Harper was in an American debate Tuesday night; Mr. Ignatieff, Mr. Layton and Mr. Duceppe were in a Canadian debate. I wanted to post this YouTube video before the debates. It’s Marshall McLuhan ...

Add Yahoo as a preferred source to see more of our stories on Google. Some headlines proclaim that America’s 250th anniversary celebrations are arriving at a time of peak division. Surveys indicate ...

Despite current political division, the author argues that debate has always been central to the American experience. The nation's founding documents, like the Declaration of Independence, were the ...