Jamie Dimon, the J.P. Morgan Chase CEO who has been bullish on the U.S. economy, said that the government shutdown could sap all growth from the world’s biggest economy.

“Someone estimated that if it goes on for the whole quarter, it can reduce growth to zero,” Dimon told reporters on a media call to discuss fourth-quarter results. “We just have to deal with that. It’s more of a political issue than anything else.”

In the earnings release, Dimon addressed the U.S. political dysfunction that is now threatening to slow economic growth: In 2019, “we urge our country’s leaders to strike a collaborative, constructive tone, which would reinforce already-strong consumer and business sentiment. Businesses, government and communities need to work together to solve problems and help strengthen the economy for the benefit of everyone.”

© CNBC is a USA TODAY content partner offering financial news and commentary. Its content is produced independently of USA TODAY.

This article originally appeared on USA TODAY: Jamie Dimon says shutdown could reduce economic growth to zero this quarter if it continues