Members of several Machinists locals and districts attended the rally, including Londonio’s Local Lodge 695, as well as IAM Lodges 289 and 2202 and Districts 160 and 751 (at Boeing).

On Tuesday members held a huge rally at the International Association of Machinists and Aerospace Workers (IAM) 751 Union Hall in South Seattle. Hundreds of members drove in, walked in or were ...

Jon Holden, the president of IAM District 751, shakes hands with Kat Kinckiner, a Boeing tool-room clerk for 15 years, during a strike rally in Seattle, Wash. Jason Redmond/AFP via Getty Images ...

IAM District 751 initially went on strike on Sept. 13 after 94.6% of its members rejected a contract that would raise pay by 25% over four years and 96% voted to go on strike.

Jon Holden, the president of IAM District 751, shakes hands with Kat Kinckiner, a Boeing tool-room clerk for 15 years, during a strike rally in Seattle, Wash. But there's one key union demand ...

Negotiations between the IAM District 751 union and Boeing are always tense. ... More than 99% of IAM members supported a strike in a largely symbolic vote at a raucous rally in July.

The contract between members of the IAM District 751 Machinists Union and Boeing has lapsed, and union members say they and the company are far apart when it comes to reaching an agreement.

At a strike rally Tuesday at the Seattle Union Hall, ... Acting Labor Secretary Julie Su met separately with IAM 751 and Boeing leadership Monday to urge both sides to continue the bargaining process.

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Jon Holden, the president of IAM District 751, shakes hands with Kat Kinckiner, a Boeing tool-room clerk for 15 years, during a strike rally in Seattle, Wash. But there's one key union demand ...