In March of 1968, Cesar Chavez announced a worldwide boycott of what California food product?

Your answer would be Grapes and he really impacted the united states by doing this hope you have a great day.

He called for a national boycott of California grapes, bringing him to nationwide attention. Critics within the union raised concerns about his strong personal control of the movement, the growing personality cult among supporters, and the purges of those deemed disloyal.