Trump can't remove BTC capital gains by EO. He CAN, however:

1. Direct the Treasury Department or IRS to issue new guidance on crypto taxation, perhaps softening enforcement or adjusting how gains are calculated (e.g., changing record-keeping rules or valuation methods).

2. Could delay implementation of certain crypto-related regulations, like the broker reporting requirements from the 2021 Infrastructure Act, if they’re still pending or flexible.

3. Might push for a temporary tax holiday or deferral (like the 2020 payroll tax EO), though this wouldn’t eliminate capital gains taxes—it’d just kick the can down the road.