U.S. stock markets were closed on Thursday in remembrance of former President Jimmy Carter, but crypto is 24/7 and is bearing the entire brunt of any nervousness ahead of tomorrow's December employment report.In late-afternoon action, the price of bitcoin (BTC) had returned to levels not seen in more than a month, barely holding on above $91,000 and down about 3% over the past 24 hours.The broader CoinDesk 20 Index is down similarly, but notable underperformers include solana (SOL) and chainlink (LINK), both off by double-digit percentage amounts.The continued selloff in crypto comes following a major fourth quarter 2024 rally spurred by Donald Trump's November victory and the hope of a friendlier regulatory environment out of Washington D.C. Another leg on the stool propping crypto was easier monetary policy, the U.S. Federal Reserve having cut its overnight interest rate by 100 basis points since September. That leg, though, has been cut out after a series of economic reports showed the economy and inflation has been far stronger than markets and the central bank expected. That in turn has sent yields on long-term interest rates higher by more than 100 basis points since the Fed began trimming short-term rates.Today's selling is coming ahead of Friday morning's December jobs report. Another in the long string of strong economic data could have markets not just scrapping the idea of any rate cuts in 2025, but perhaps beginning to price in the need for rate hikes in coming months.