Members of the Teamsters union have authorized a strike against Costco on February 1 unless they reach a deal with the warehouse retailer before the current contract expires on January 31.

U.S. President Donald Trump’s on-again, off-again trade wars have revealed the limits of international solidarity by U.S. based unions, especially the Teamsters, to their counterparts in Canada.

Costco Teamsters have voted to strike on Jan. 31. Costco Teamster practice strikes have been held in Long Island, NY; Sumner, WA; and San Diego, Long ... [+] Beach and Hayward, CA. (Photo by ...

Members of the Teamsters union have authorized a strike against Costco on Feb. 1 unless they reach a deal with the warehouse retailer before the current contract expires on Jan. 31.The union said ...