Photo of Yonatan Grossman-Boder

Yonatan (Yoni) Grossman-Boder is a special labor relations counsel in the Labor & Employment Law Department. Yoni assists clients in a wide range of labor and employment law matters, including litigations, administrative proceedings, arbitrations, internal investigations, labor-management relations and claims of employment discrimination, harassment, retaliation, and wrongful termination. He frequently represents clients across a variety of industries and sectors, including educational institutions, financial services, media and entertainment companies, health services and professional services.

Yoni clerked for the Honorable Richard M. Gergel of the U.S. District Court for the District of South Carolina.  While attending Duke University School of Law, Yoni served as the publication and lead articles editor of Law and Contemporary Problems.

Prior to coming to Proskauer, Yoni served as a legal intern at the New York Human Resources Administration Employment Law Unit. As a legal intern, he worked on a variety of employment matters, including employment discrimination investigations and litigation. While a summer associate at Proskauer, Yoni co-authored an article on retiree health care benefits under ERISA titled "Understanding M&G Polymers v. Tackett," published by Benefits Magazine in April 2015.

In a significant decision, the Third Circuit Court of Appeals held on December 3, 2025 that federal courts lack jurisdiction to issue injunctions that would halt ongoing National Labor Relations Board (“NLRB”) administrative proceedings—even when an employer frames its challenge as a constitutional attack on the NLRB’s structure.

The ruling

UPDATE: On December 3, 2025, the Senate Health, Education, Labor and Pensions (“HELP”) Committee approved President Trump’s nomination of Scott Mayer to fill one of the vacant Republican seats on the National Labor Relations Board (“NLRB” or the “Board”).  Almost two months ago, on October 9, the HELP Committee also

On December 5, 2025, a divided D.C. Circuit panel held that for-cause job-removal protections for members of the National Labor Relations Board (“NLRB” or “Board”) and Merit Systems Protection Board are unconstitutional because they violate Article II.

The ruling has immediate consequences for the NLRB and sets up a direct

On December 1, 2025, in NLRB v. Constellis, LLC, a unanimous Fourth Circuit panel joined other federal appellate courts in narrowly interpreting the National Labor Relations Act’s (“NLRA” or the “Act”) judge-made managerial exception, which carves out certain high-level employees from the NLRA’s protections.

The decision reinforces the decades-long

On November 26, 2025, a New York federal judge granted Amazon’s bid for a preliminary injunction barring the enforcement of recent amendments to the Empire State’s State Employment Relations Act (“SERA”) that would have subjected most private-sector employers within the state to the jurisdiction of the Public Employment Relations Board

On June 25, 2025, William B. Cowen, the Acting General Counsel of the National Labor Relations Board (“NLRB” or “Board”), issued GC Memorandum 25-07 to the Board’s 26 regional offices arguing that if an employer or union surreptitiously records collective bargaining negotiations then they automatically violate the National Labor Relations

While the National Labor Relations Board (“NLRB” or the “Board”) does not have a quorum, a pair of June 13, 2025 decisions by federal courts of appeal highlight key labor law issues under the National Labor Relations Act (“NLRA” or “Act”).

  • In Grove v. NLRB, the D.C. Circuit vacated the Board’s finding that an employer unlawfully declared impasse after protracted pension bargaining, clarifying the legal standard for impasse determinations.
  • In Welch v. International Association of Sheet Metal, Air, Rail & Transportation Workers, Local 100, the Fourth Circuit affirmed that a union’s organizing tactics—including public communications and litigation support—remained protected under the NLRA and did not constitute unlawful secondary activity or actionable defamation.

These opinions reinforce that impasse findings must be based on objective evidence and that peaceful union advocacy is generally lawful under federal labor law.

D.C. Circuit Slams NLRB’s “Irrational” Impasse Analysis

In Grove v. NLRB, No. 23-1164 (D.C. Cir. June 13, 2025), the D.C. Circuit addressed whether an employer lawfully declared impasse after years of bargaining over pension contributions.  The parties engaged in extensive negotiations, including numerous sessions and a lengthy strike, but remained deadlocked over the pension issue.  When both sides confirmed their positions were non-negotiable, the employer declared impasse.  The Board found the employer had not bargained in good faith and could not declare impasse; however, the D.C. Circuit rejected the Board’s conclusion, finding that the Board’s analysis lacked substantial evidence and failed to apply the correct legal standard for impasse under labor law.

  • Objective Evidence Controls Impasse. The D.C. Circuit emphasized that a lengthy history of deadlocked bargaining and strikes is strong evidence of impasse. The Board must consider the full bargaining record when making impasse determinations.
  • Union Denials Are Not Dispositive. The court clarified that a union’s subjective denial of impasse does not override objective evidence of deadlock.  Labor law requires an analysis of bargaining conduct—not just party statements.
  • Timing of Information Requests. Last-minute information requests by a union—which the court termed an “obvious ploy” because there was no clear link to renewed bargaining movement—did not prevent a finding of impasse.

The court did enforce one narrow part of the Board’s order finding that the employer violated the Act by laying off two union employees that served as election observers.

Fourth Circuit Blesses Union’s Aggressive Organizing Campaign

On the same day, in Welch v. International Associate of Sheet Metal, Air, Rail & Transportation Workers, Local 100, No. 24-2067 (4th Cir. June 13, 2025), the Fourth Circuit addressed the boundaries of lawful union advocacy under federal labor law.  The court considered whether union activities—such as distributing leaflets, sending letters to customers, publicizing allegations, and supporting litigation—constituted unlawful secondary activity or defamation under the NLRA and state law.  The court held that these actions, absent violence or picketing, were protected forms of peaceful, persuasive advocacy under federal labor law.

  • Protected Union Advocacy. The court reaffirmed that under Supreme Court precedent in Edward J. DeBartolo Corp. v. Fla. Gulf Coast Bldg. & Constr. Trades Council, 485 U.S. 568 (1988), peaceful union advocacy—including letters, leaflets, and litigation—is not considered “threatening, coercing, or restraining” under Section 8(b)(4) of the NLRA unless accompanied by violence or picketing.
  • Preemption of Defamation Claims. The court applied Supreme Court precedent in Linn v. United Plant Guard Workers of Am., 383 U.S. 53 (1966), which held that state-law defamation claims arising from labor disputes are preempted unless the plaintiff can show actual malice and falsity, accompanied by damages. The union’s communications accurately described pending accusations and investigations, and the complaint failed to allege actionable falsehoods or malice as required by federal labor law.

Takeaways

 These decisions provide guidance on the facts that give rise to a finding of lawful impasse and on the standard applied when a union engages in aggressive tactics that fall short of an unlawful secondary boycott.

As the Board continues to operate without a quorum, these dual decisions should serve as a reminder of the importance of federal courts in hearing and resolving labor disputes.  Where appropriate, a federal court of appeals can provide redress if a party believes the Board decided an issue incorrectly.  Additionally, in cases involving secondary boycotts, employers can file a complaint in federal court in the first instance, without having to avail itself of the procedures of the Board (although secondary boycott cases receive priority processing at the Board).

Though the Supreme Court has yet to revisit the high standard of deference provided to orders of the Board since its ruling in Loper Bright Enterprises v. Raimondo, 144 S. Ct. 2244 (2024), any change to that deferential standard may only increase the frequency with which parties end up before a federal court of appeals.

On May 16, 2025, the National Labor Relations Board’s (“NLRB”) Acting General Counsel, William B. Cowen, issued Memorandum GC 25-06, titled “Seeking Remedial Relief in Settlement Agreements,” that significantly loosens the requirements before NLRB Regions to approve settlements of unfair labor practice charges. 

The Memorandum comes on the heels