Only one in four Canadians say the North American Free Trade Agreement is good for their country, and more than one-third want it renegotiated, according to a poll ahead of a leaders' summit on Wednesday.

The survey from the Angus Reid Institute on Monday come as protectionist sentiment swells in the United States, where voters at both ends of the political spectrum question the economic benefits of NAFTA.

The U.S. Congress is hesitating to ratify the 12-nation Trans-Pacific Partnership free trade pact, which also includes Canada and Mexico.