Here are the latest developments in the cryptocurrency sector:

1. The Trump family's new cryptocurrency venture, World Liberty Financial, has announced the launch of a stablecoin named USD1. This move is complicating bipartisan efforts to pass GOP-led cryptocurrency legislation.

2. The Federal Deposit Insurance Corporation (FDIC) has rescinded a guideline that required banks to obtain pre-approval before engaging in crypto-related activities. This change is expected to significantly increase traditional financial institutions

3. Bpifrance, the French public investment bank, has announced plans to allocate up to €25 million for purchasing lesser-known cryptocurrencies to support French crypto enterprises. 

4. Bitcoin's price has plunged below $84,000 after a $115 billion sell-off, erasing the week's gains. This downturn reflects the cryptocurrency market's volatility and highlights the need for investors to stay informed about market trends and developments.