The agricultural machinery maker John Deere tested the mettle of the United Auto Workers this summer, probing for softness as the union heads into a leadership election this month. After fits and starts the union essentially told Deere to stick it.

The agricultural machinery maker John Deere tested the mettle of the United Auto Workers this summer, probing for softness as the union heads into a leadership election this month. After fits and starts the union essentially told Deere to stick it.