Senate Democrats are calling on the Trump administration to stop production of a commemorative 250th anniversary solid gold coin that would feature President Donald Trump.

Sens. Elizabeth Warren of Massachusetts and Ron Wyden of Oregon expressed concern that some of the U.S. Mint's gold could have links to foreign cartels, The Washington Post reported.

The coin would feature Trump leaning on a desk with clenched fists and be up to 3 inches in diameter. Trump personally approved the coin.

A New York Times investigation published in April reported that gold tied to Colombian drug cartels entered supply chains that ultimately sold gold to the U.S. Mint.

"At the very least, the Mint should ensure that a coin intended to honor the nation's 250th anniversary is not made of gold linked to exploitation and criminal activity," Warren and Wyden wrote in a letter to Treasury Secretary Scott Bessent and U.S. Mint Director Paul Hollis.

Wyden and Warren called for a public review of the gold's sourcing and supply chain, claiming the coin is "more befitting a monarchy than a democracy."

The Treasury Department defended the coin in a statement to the Post.

"As we approach our 250th birthday, we are thrilled to prepare coins that represent the enduring spirit of our country and democracy, and there is no profile more emblematic for the front of such coins than that of our serving President, Donald J. Trump," U.S. Treasurer Brandon Beach said.

A bill was previously introduced by Democrats that would bar any living president from being featured on U.S. currency.

The Treasury Department told the Times the administration is taking steps to source its gold purchases.

The Citizens Coinage Advisory Committee, a bipartisan panel that approves coins, has refused to consider the coin, the Post reported.

"The CCAC has not been presented with a Trump gold coin for review," Donald Scarinci, a coin collector who sits on the committee, told the Post. "If they make it without our review, it will be illegal."