Bitcoin and XRP are tumbling today as Trump ramps up tariff threats. What’s happening with crypto?

Greenland may be at the center of international affairs, but the crypto markets are in the red to kick off the holiday-shortened week. 

Tuesday morning, Bitcoin was trading at around $91,000, which was down around 4.5% over the past five days. It had been trading around $95,000, but took a tumble late Sunday evening, suddenly falling to less than $93,000, and trended downward early Tuesday.

Ethereum, or ETH, followed a similar trajectory: ETH values are down almost 8% over the past five days...