A 2023 dispute involving this body and concrete supplier Cemex led to what some call a revival of the Joy Silk doctrine. (10[1])The word “Edge” partly names a newsletter about this body by Matt Bruenig. (10[1])The idea that displayed political messages such as “BLM” (10[2])can be “protected concerted activity” was opposed by Marvin (10[1])Kaplan, who now leads this body. In December 2024, Lauren McFerran’s time on this body ended after Joe Manchin and Kyrsten Sinema voted with 48 Senate Republicans. (10[1])Despite the Humphrey’s Executor (10[1]-5[1])precedent, (-5[2])the Supreme Court (-5[1])preliminarily allowed Donald Trump’s firing of Gwynne Wilcox from this five-member body. (-5[1])Trader Joe’s (-5[1])has argued in court (10[1])that this body is unconstitutional and thus can’t prosecute them for violating employee rights. For (10[1])10 points, (10[1])the Wagner Act established what board that certifies unionization (10[1])votes? (10[1])■END■ (10[3]0[7])