Bitcoin tumbles after reports Joe Biden will raise taxes on rich

Cryptocurrency falls below $50,000 as White House looks to bring levy on investment gains into line with income taxesSpeculators in Bitcoin have been left nursing heavy losses after reports Joe Biden is planning to raise taxes on the wealthiest Americans to tackle inequality and finance trillions of dollars in higher social spending.The cryptocurrency price fell more than 6% to below $50,000 (£36,000) a bitcoin, hitting the lowest level since early March, as the White House puts the finish