Stocks indices declined in midday trading on political turmoil between the FBI and President Trump, and its possible effects on the administration’s economic proposals.

The S&P 500 was down 1.3% to 2,369.23. The Dow Jones Industrial Average was down 1.4% to 20, 694.32. The NASDAQ was down 1.8% to 6,057.86.

The yield on a 10-year Treasury bond fell 4.6% to 2.22%.

The price of gold rose 1.9% to $1,259.

HEALTHCARE

Glaukos Corp. in San Clemente was down 6% to $38.12 and a $1.3 billion market cap. The company makes a stent to treat glaucoma.

REAL ESTATE

Foundation Building Materials Inc. in Tustin was down 3% to $14.61 and a $626 million market cap. The firm distributes building products that include wallboard and suspended ceiling systems.