In the 1980s, some companies paid new workers less than current workers. Now, employers are trying that system during a labor shortage.
In addition to cereal maker Kellogg's, there have also been strikes and union efforts at Amazon and within Hollywood.
A strike by the International Association of Theatrical Stage Employees could halt film and TV production across the country.
AFL-CIO President Elizabeth Shuler advocates a revitalized labor movement that expands high-quality jobs and reduces inequality.
Unions for food and drink workers go back to 1891. But they lost their seat at the table with the growth of restaurant chains and fast food.
The new contract means that more than 40,000 workers will see a bump in pay.
The justices have expanded property rights in a number of recent cases.
The union said it would file an objection with the NLRB charging the company with illegally interfering with the union vote.
The bill, which offers sweeping protections for organized labor, may not pass the Senate. But it may stimulate conversation and education.
Union workers lost fewer jobs than their non-union counterparts because of negotiated furloughs and other protections.