International Brotherhood of Teamsters

Thousands of Starbucks workers staged a walkout to address understaffing concerns. The Workers United Union led the strike on Red Cup Day.

Starbucks faces largest walkout as workers protest understaffing

Yellow Corp., which has been in business for nearly a century, halted operations and will lay off all 30,000 of its workers.

99-year-old trucking company Yellow shuts down, lays off 30,000

UPS agreement with Teamsters sees major pay hike as labor unions notch another big win with threats of strikes.

In major UPS deal, labor unions continue win streak with strike threats

Monday marked two weeks out from the deadline for a deal on a new contract to be reached between UPS and the Teamsters union before a strike.

Teamsters ask White House to stay out as all sides prep for possible UPS strike