Joseph R. Biden Jr. vowed to be “the most pro-union president you’ve ever seen.” And for the last two years, labor leaders have often lauded him for delivering on that promise.They cite appointees who are sympathetic to unions and a variety of pro-labor measures, like a pandemic relief bill that included tens of billions to shore up union pension funds.But in recent weeks, after Mr. Biden helped impose a contract on railroad workers that four unions had rejected, partly over its lack of paid sick days, many labor activists and scholars have begun to ask: How supportive is the president, really?To those reassessing Mr. Biden, the concern is that the president, by asking Congress to intervene and avert a strike, missed a rare opportunity to improve workers’ bargaining power in ways that could extend beyond the rail sector. They worry that the move essentially validated an employer strategy of waiting out workers in hopes that the pressure would fizzle.“Whether this group of workers has sick days or not on some level was not the issue,” said Kim Phillips-Fein, a historian at Columbia University who studies labor. “It was: What can people ask for and expect to win through co …
