$TRUMP Over the past two days, it has surged from 2.7 to 4, a gain of over 30%.

The reason is simple: the project team announced they would hold an "exclusive dinner for major holders," saying Trump himself might possibly attend, and then the coin price went up.
It's "might" attend—the White House hasn't confirmed it, and the project team itself left themselves an out saying if he doesn't come they'll issue NFTs instead.
Back in January when TRUMP coin launched, the price surged from 1 to 75. That was when Trump had just taken office—it was a real hot spot. Now it's already down 96%, and this pump to 4 dollars is still 94% away from its all-time high.
The 24-hour trading volume has skyrocketed from tens of millions to 1.9 billion dollars, a 493% increase. This kind of abnormal trading volume typically means someone is dumping.
This current pump is just another round of harvesting retail investors.