Pompeo was in Switzerland Sunday for talks with Foreign Minister Ignazio Cassis. Switzerland represents U.S. interests in Iran.

America’s top diplomat says the U.S. is “prepared to engage in a conversation with no preconditions. We’re ready to sit down” with Iran’s leaders.

But Pompeo also is making clear that “the American effort to fundamentally reverse the malign activity of this Islamic Republic, this revolutionary force, is going to continue.”