President Donald Trump's longtime teleprompter is under investigation for allegedly using his access to the president's prepared remarks to profit on the prediction market Kalshi. 

Federal regulators are in settlement talks with Gabriel Perez, who has worked for the president since 2016, NPR reported, citing unnamed sources.  

Perez is alleged to have made nearly $100,000 betting on Kalshi "mention markets," where people wager on remarks the president will or won't say during public events. 

Kalshi's surveillance systems detected patterns betting on the markets involving the president that didn't follow typical behavior. The company examined the accounts behind it and discovered that the user was a federal employee. 

Perez is now negotiating with the Commodity Futures Trading Commission over his alleged actions on the site. 

"Our surveillance team promptly flagged and referred these trades to the CFTC after an exchange investigation. We have been assisting regulators on this matter and provided evidence we collected, as we do in any referral," Robert DeNault, who heads enforcement at Kalshi, told NPR. 

The company has frozen about $90,000 of Perez's profits, and he's been banned from the site.