A U.S. Congressman who serves as the top Democrat on the House Judiciary Antitrust Subcommittee is calling for a hearing on Amazon.com’s proposed $13.7 billion acquisition of Whole Foods, saying that the deal could negatively impact neighborhood grocery stores, decrease wages for Americans and drive food prices up.

“Competition is essential for a healthy economy,” said David N. Cicilline, a house Democrat from Rhode Island. “That’s true across the board. Amazon’s proposed purchase of Whole Foods could impact neighborhood grocery stores and hardworking consumers across America. Congress has a responsibility to fully scrutinize this merger before it goes ahead. Failing to do so is a disservice to our constituents.”

Following Amazon’s Prime Day, Rep. Cicilline Calls for Hearing on Acquisition of Whole Foods Market pic.twitter.com/vy7i5wUVPu — David Cicilline (@RepCicilline) July 13, 2017

Whole Foods, which started in Austin, Texas in 1980, operates 465 stores in North America and the United Kingdom.

It’s certainly a small player in the overall grocery market when compared to giants like Kroger, but even so there is chatter that Amazon may be getting too big for its britches.

Earlier today, Marketwatch reported that hedge-fund manager Douglas Kass is shorting Amazon’s stock in anticipation of possible government intervention into Amazon’s business.

President Donald Trump also has attacked Amazon.com and its founder Jeff Bezos in the past, saying that Amazon has “a huge antitrust problem”

“He wants political influence so that Amazon will benefit from it — that’s not right,” Trump said during one campaign appearance last year. “And believe me, if I become president, oh, do they have problems. They’re going to have such problems, because he’s controlling so much.”

Other experts have said that it’s unlikely that the Whole Foods-Amazon deal would hit anti-trust snags, with CNBC quoting University of Pennsylvania law school professor Herbert Hovenkamp last month who said “I don’t really see an antitrust concern.”

Fresh off the heels of a successful “Prime Day,” shares of Amazon are near an all-time high, trading at $999, giving the online retailing powerhouse and cloud computing giant a market value of $475 billion.

Here’s the full statement that the Congressman sent to the Committee Chairman and Subcommittee Chairman: