The head of JPMorgan Chase says he has met with one of President Donald Trump's top economic advisers.

Jamie Dimon, the bank's chairman and CEO, said as he was leaving the White House grounds Friday afternoon that he had been talking with Gary Cohn, the former Goldman Sachs chief operating officer who is now director of the National Economic Council.

"I offered my help," Dimon told CNBC. "Most people are trying to do things that get the country to grow faster and get more jobs for Americans. We want to do our part to do that."

Dimon says he could help on trade, tax and employment policies, as well as financial regulations.