Crowds protesting billionaire Elon Musk’s purge of the U.S. government under President Donald Trump began amassing outside Tesla dealerships throughout the U.S. and in some cities in Europe on Saturday.

After earlier demonstrations that were somewhat sporadic, Saturday marked the first attempt to surround all 277 of the automaker’s showrooms and service centers in the U.S. in hopes of deepening a recent decline in the company’s sales.