What was the general public's perception of Albert Einstein in the United States and Europe after he moved to the United States in the 1930s?

In the 1920s he was a big celebrity, and it was even said that he was the smartest man alive, but I really don't know what people thought of him after he moved to the United States in the 1930s. I would really appreciate it if you could give me some good sources about this topic if you have any.