U.S. position on overthrow of Yemeni president vs. Ukrainian president

"QUESTION: Frankly, I had another subject. On Yemen, how come if this president when he left his capital is still technically president in his country?

MS. PSAKI: That’s --

QUESTION: How come the Ukrainian president was not in the same position?

MS. PSAKI: That’s the Yemeni constitution and what the Yemeni constitution says, so I encourage you to take a look at the Yemeni constitution if you’re interested.

QUESTION: And the Ukrainian constitution said the same thing.

MS. PSAKI: Well, I think --"