Case Citation
Legal Case Name

LABOR BOARD v. MACKAY CO., Case Brief

Supreme Court of United States1938
304 U.S. 333 58 S.Ct. 904 82 L.Ed. 1381 Labor Law Administrative Law Constitutional Law

Why Top Law Students (And Those Aspiring to Be) Use LSD+ Briefs

Let's be real, law school is a marathon. Our exclusive Flash-to-Full case system is designed by Harvard Law School and MIT grads to match your pace: Quick summaries when you're slammed, detailed analysis when you need to go deep. Only LSD+ offers this kind of flexibility to genuinely fit your study flow.

Adaptive Case Views

Toggle between Flash, Standard, and Expanded. Get what you need, when you need it.

Exam-Ready IRAC Format

We deliver the precise structure professors look for in exam answers.

Complex Cases, Clarified

We break down dense legal reasoning into something digestible, helping you grasp core concepts.

Case Brief Summary & Legal Analysis

General Brief
3 min read

tl;dr: An employer hired permanent replacements for striking workers. The Supreme Court held that while hiring permanent replacements is lawful, the employer committed an unfair labor practice by discriminating against striking union leaders when deciding which workers to reinstate after the strike ended.

Legal Significance: This case established the foundational “Mackay doctrine”: employers may permanently replace economic strikers to continue business operations but may not discriminate based on union activity in reinstating strikers to available positions.

LABOR BOARD v. MACKAY CO., Law School Study Guide

Use this case brief structure for your own legal analysis. Focus on the IRAC methodology to excel in law school exams and cold calls.

Case Facts & Court Holding

Key Facts & Case Background

Following unsuccessful contract negotiations, a union representing employees at Mackay Radio & Telegraph Co. called a strike. To maintain operations, the company transferred employees from its other offices to fill the strikers’ positions, assuring these replacements they could remain permanently if they wished. The strike was unsuccessful, and the striking employees offered to return to work. The company stated it would reinstate the strikers but needed to accommodate the replacement workers who chose to stay. A company supervisor created a list of eleven strikers, who were prominent union leaders, and stated they would have to reapply for their positions. Ultimately, only five replacements stayed, leaving vacancies. The company reinstated most strikers, including six from the list of eleven, but refused to reinstate five of the most active union leaders, claiming their positions were filled. The union filed a charge with the National Labor Relations Board (NLRB), alleging the company’s refusal to reinstate the five men constituted an unfair labor practice under the National Labor Relations Act (NLRA).

Court Holding & Legal Precedent

Issue: Does an employer commit an unfair labor practice under the National Labor Relations Act by refusing to reinstate certain striking employees due to their union activities, even if the employer has a right to hire permanent replacements during the strike?

Yes. The employer committed an unfair labor practice. While it was not Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderi

Master Every Case Faster

Unlock premium legal analysis that helps you quickly understand complex cases, designed by Harvard Law and MIT graduates. It's about working smarter, not just harder.

Start 14-Day Free Trial

Thousands of students are already saving time and gaining clarity. Why not you?

IRAC Legal Analysis

Premium Feature Unlock

Complete IRAC Analysis for Higher Grades

IRAC (Issue, Rule, Analysis, Conclusion) is the exact format professors want to see in your exam answers. Our exclusive Flash-to-Full briefs combine holding, analysis, and rule statements formatted to match what A+ students produce in exams. These structured briefs help reinforce the essential legal reasoning patterns expected in law school.

Legal Issue

Does an employer commit an unfair labor practice under the National Labor Relations Act by refusing to reinstate certain striking employees due to their union activities, even if the employer has a right to hire permanent replacements during the strike?

Conclusion

This landmark decision established the Mackay doctrine, which remains a central and Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis

Legal Rule

Although an employer is not bound to discharge permanent replacements hired during Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteu

Legal Analysis

The Court's analysis established a critical balance between an employer's right to Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut en

Flash-to-Full Case Opinions

Flash Summary

  • Strikers remain “employees” under the NLRA and are protected from unfair
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse

Master Every Case Faster

Unlock premium legal analysis that helps you quickly understand complex cases, designed by Harvard Law and MIT graduates. It's about working smarter, not just harder.

Start 14-Day Free Trial

Thousands of students are already saving time and gaining clarity. Why not you?