JPMorgan Chase CEO Jamie Dimon said tariffs can resolve issues such as unfair competition and national security, Bloomberg reports.

In an interview on CBS News’ “Sunday Morning,” Dimon said, “Trump is a negotiator. He lays out some very tough things, and sometimes it works. We have to worry more about national security, resiliency, diversified supply chains — and we didn’t.”

Dimon said he was not surprised that Trump won the presidency because voters viewed government under the Biden administration as ineffective.

Voters “wanted more pro-growth and pro-business policies [and] didn’t want to be lectured to on social policies continuously,” Dimon said.

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The 68-year-old CEO reiterated his warnings that the globe faces the most precarious geopolitical environment since World War II, and said he has spoken with a few members of Trump’s staff to offer help.

“Politics aside, policy’s got to be right,” Dimon emphasized.

While Dimon generally supports Trump’s plans to impose tariffs against major U.S. trade partners, he tempered that by saying of tariffs, “Like any tool, if it’s misused, it can do damage, too,” adding that the United States has an obligation to consider the downsides of tariffs on key trading partners.

“We should’ve worried more about who it hurt,” Dimon said.

Asked in the wide-ranging interview about the planned Department of Government Efficiency, to be run by billionaires Elon Musk and former Republican presidential candidate Vivek Ramaswamy, Dimon said he was not sure if this is the right approach to streamline government — but that he “absolutely” wants DOGE to succeed.

When asked if he knows who his successor at JPMorgan will be after running the bank as CEO for the past 20 years, Dimon replied simply that he does not.