Five Lee papers in Montana refused to run an ad from the United Food and Commercial Workers. Ten other Montana papers ran the ad, which asked readers to call for insurance information. UFCW doesn't sell insurance; it does offer coverage to union members. (Lee has made its anti-union stance pretty well known. Last year it launched Lee Union Free.)
Billings Blog has more on the article that the Butte Weekly (which does not have a website) wrote about the incident, including a very short interview with the publisher of the Helena Independent-Record and Montana Standard.