President Donald Trump pocketed more than $635 million from a single meme coin in 2025. That sum represented his largest reported income source for the year. Nearly one million buyers ended up underwater. Their collective losses topped $3.8 billion. Sen. Kirsten Gillibrand wants to make sure no elected official can repeat the feat. The New York Democrat has renewed calls for a ban on members of Congress, the president, and their spouses from iss…