Cryptocurrency billionaire Justin Sun is suing World Liberty Financial, a crypto venture co-founded by President Donald Trump and his sons, alleging the company illegally blocked him from selling digital tokens worth up to $1 billion.

The lawsuit, filed on Tuesday in California federal court, also accuses World Liberty Financial of trying to pressure Sun into investing “hundreds of millions of dollars to mint USD1, World Liberty’s stablecoin.” The complaint alleges that the company froze his World Liberty Financial tokens after Sun refused to commit more money to the business.

World Liberty Financial co-founder and CEO Zach Witkoff dismissed Sun’s allegations as “entirely meritless.”

“Justin Sun’s recent lawsuit against…