Wall Street brokerage Jefferies Financial Group (NYSE: $JEF) is warning investors that volatility in the cryptocurrency market could worsen in this year’s second half. 

Specifically, analysts at Jefferies say that more highs and lows can be expected from Bitcoin (CRYPTO: $BTC) and other digital assets as the “Clarity Act” stalls in the U.S. Congress. 

Jefferies notes that the Clarity Act crypto legislation faces significant hurdles to becoming the law of the land in America. 

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While the legislation recently cleared the Senate Banking Committee, passage is far from assured, especially with Midterm Congressional elections taking place this November.