Is copy trading illegal in the US?

Could you please clarify for me, is copy trading, which involves replicating the trades of experienced traders in order to potentially generate similar returns, considered to be an illegal practice within the United States? I'm interested in understanding the legal implications and any potential risks associated with this type of trading, as well as whether there are any regulatory bodies overseeing its operation. Additionally, are there any specific guidelines or rules that traders should be aware of when engaging in copy trading activities? Thank you for your assistance in clarifying this matter.