President Donald Trump is meeting Sunday with European Commission chief Ursula von der Leyen, taking a break from golfing in Scotland to discuss trade as both sides seek an agreement on tariff rates with the White House's deadline to impose stiff import taxes looming this week.

A federal appeals court will soon hear oral arguments in a high-profile lawsuit challenging Trump's authority to impose sweeping "reciprocal" tariffs. The case is the furthest along of more than half a dozen federal cases targeting Trump's imposition of tariffs using an emergency-powers law known as IEEPA.

“The key is will we see that effective tariff rate hover around the 15 to 17% level, or will it be north of 20%?” he said.