Midday Key Developments on February 28

7:00 (UTC+8) - 12:00 (UTC+8) Keywords: OpenAI, Uniswap, Tether1. The Trump administration seeks to postpone the tariff rebate lawsuit;2. OpenAI has dismissed an employee involved in "insider trading" related to prediction markets;3. Trump orders all federal government agencies to immediately stop using Anthropic's technology;4. The first crypto chartered bank in the US, SoFi, now supports Solana network deposit functionality;5. Uniswap fee switch is proposed to expand to eight chains, UNI holders can receive protocol revenue by burning UNI;6. Nvidia plans to launch new chips to accelerate AI processing speed, which may reshape the computing market;7. Tether transferred 28,723 XAUT to Abraxas Capital, valued at approximately $151 million.