This morning, members of  SEIU Local 99, a Los Angeles Union that represents Bus drivers, custodians, special education assistants, cafeteria workers within the Los Angeles Unified School District began a massive 3-day strike.

And while strike is localized to Los Angeles, strikes like this can quickly spark strikes in other districts.

For more, Patti Reising and Brett Burkhart spoke with William B. Gould, Stanford Law Professor and author of the new book, "For Labor to Build Upon: Wars, Depression and Pandemic."