 Complete the following phrase:  The MacDonald-Cartier coalitions prestige was only strengthened by the creation of the new Canadian Confederation in 1867. Their coalition dominated the early politics of the new state. Their National Policy of high tariffs against the United States, and intense railway building, became the basis of a political dynasty that dominated Canadian politics from Confederation until Macdonalds death in office in 1891. The greatest strain in this coalition came during the Riel rebellions of 1869 and 