Taft-Hartley gives employers all kinds of ways to block union certification elections, harass workers with demands for obstructionist hearings on what is an "appropriate bargaining unit," permits aggressive anti-union organizing, and outlaws the "closed shop" for union solidarity.
One of the most damaging provisions defines "employees" so as to exclude supervisors and independent contractors. This greatly diminished the pool of workers eligible to be unionized. For example, years ago AT&T widely expanded the number of "supervisors" to both deplete the union membership numbers and use their "supervisors" as management control tools.
Taft-Hartley has other pro-management provisions, including controls over pensions, disclosure of information, and workplace time for union purposes.
Once Taft-Hartley was on the books, its restrictions were strengthened by the courts and the National Labor Relations Board (whose last pro-corporate general counsel was just fired by Biden). With the expansion of the "gig economy," by Uber, Lyft, Airbnb, and other companies whose business model is built on having no employees, the challenge for American workers is nothing less than displacing anti-labor dictates with a comprehensive worker's human rights law.
The PRO Act is decidedly not anywhere near Biden's recent recognition that "Nearly 60 million Americans would join a union if they get a chance ". They know that without unions, they can run the table on workers - union and non-union alike" (Statement by President Joe Biden on the House Taking Up the PRO Act, March 9, 2021).
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