On Thursday, CNN's Fred Pleitgen reported that Ukraine is opening its own criminal investigation into the apparent stalking and surveillance of former U.S. Ambassador Marie Yovanovitch.
"They said they're basing all this on the materials made public by the House Permanent Select Committee on Intelligence," said Pleitgen. "All those text messages and similar communications that were published over the past 24 hours. And then a key part of the statement I want to read. It says, Ukraine's position is not to interfere in the domestic affairs of the United States of America. However, the published references cited by the media contain a possible violation of the law of Ukraine and the Vienna Convention on Diplomatic Relations, which protects the rights of a diplomat on the territory of a foreign country."