Why a recent Supreme Court decision could undermine the stock market's biggest bull case for Trump's 2nd term

Stefani Reynolds/Bloomberg

• A recent Supreme Court ruling may slow down President-elect Donald Trump's deregulation plans.
• The overturning of the Chevron doctrine in June limits federal agencies' power, complicating deregulation efforts.
• Deregulation delays could disappoint investors who have been pricing in less red tape since Trump's win.

A recent Supreme Court decision could hinder one of the stock market's biggest reasons for rallying around Donald Trump's coming second term in office.