Last month most Canadian voters backed candidates who opposed the free-trade agreement.
Twenty-one oppose the agreement, while four favor it and six are undecided.
But the union has opposed the agreement, saying it will cost American jobs.
They have not openly opposed the agreement, however.
In Hebron, settlers were reported to be meeting to decide how to oppose the agreement.
Parts of the Palestinian resistance movement opposed the agreement and tried to violate the ceasefire.
Seven of the 18 ministers in the Cabinet have said they will oppose the agreement, and two are wavering.
All 19 parties to the accord have now signed it, but two Hutu rebel groups continue to oppose the agreement.
Georgetown residents committed to turning the entire area into a park overwhelmingly opposed the agreement.
Ruth Burtun, 50, a social worker here who also opposed the agreement, was even less hopeful.