In addition to the 25% levied on the $200 billion in Chinese imports, today:

https://www.washingtonpost.com/world/asia_pacific/the-latest...

President Donald Trump says his administration is beginning the process to impose 25% tariffs on another $325 billion in Chinese imports, covering everything China sells the United States.

This will definitely have an effect on Amazon FBA sellers eventually, as foreign factories continue to move out of China until...they're all gone. Then the Chinese factories will try to flood Amazon with goods...until Trump focuses on Amazon, after he tariffs all of Chinese's goods.