Senate Republicans will make the case Tuesday for reining in the National Labor Relations Board, the main federal labor law enforcement agency, arguing that its recent efforts to expand the legal definition of a “joint employer” would hurt the economy.

Sen. Lamar Alexander, R-Tenn., chairman of the Health, Education, Labor and Pensions Committee, will lead the effort by holding a hearing on legislation dubbed the Protecting Local Business Opportunity Act. The hearing is part of coordinated effort by Republicans to head off the labor board’s efforts. House GOP lawmakers held a hearing earlier this week in the Education and the Workforce Committee on their version of the legislation.

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