An estimated $4 billion business merger involving former President Donald Trumps social media company could hit a major snarl after a lawsuit was filed Wednesday accusing Trump of trying to dilute the co-founders shares.

Andy Litinsky and Wes Moss, who co-founded Trumps Truth Social platform, filed a lawsuit in Delaware claiming their previously negotiated 8.6% stake in Trump Media & Technology Group (TMTG ) has been watered down to less than 1%, The Washington Post and CNBC reported.

The dispute comes as TMTG eyes a merger with the publicly traded shell company Digital World Acquisition Corp. The sale, which Digital Worlds shareholders are scheduled to vote on next month, is estimated to be worth as much as $4 billion, according to The New York Times.