This tour is intended to promote U.S. economic and security ties with Central and South Asia. But it has only tangential links to the Trump administration's current main foreign policy dilemmas in the Middle East and with the Russia-Ukraine war.

Guilfoyle insisted she'll "vigorously defend" herself.

Trump appointee Kimberly Guilfoyle, the U.S. ambassador to Greece, has been asked to resign from her post after coming under severe criticism over allegations she has engaged in improper and possibly illegal conduct before and during her tenure in Athens, new Trump press secretary Katie Zacharia said Tuesday.