President Trump is right that Amazon is too big and poses a threat to smaller businesses, Sen. Bernie Sanders, I-Vt., said Sunday.

Sanders said on CNN’s “State of the Union” he thinks the online retail giant has grown too large when asked for his take on Trump’s attacks on the company.

“Yeah, I do. I do. I think this is — look, this is an issue that has got to be looked at,” Sanders said.

Trump has focused on Amazon in recent days as a threat to the U.S. Postal Service and accused the company of shirking its tax responsibilities to state governments.

He’s also accused the Washington Post — owned by Amazon founder Jeff Bezos — of being a lobbying organization that is an arm of Amazon though the companies are not related, beyond being owned by the same man.

Sanders said Amazon’s push into so many different sectors of the American business world is worrying.

“We're seeing this incredibly large company getting involved in almost every area of commerce and I think it is important to take a look at the power and influence that Amazon has,” he said.