He said it in an interview with Radio Svoboda, Censor.NET reports.
Herbst gave several comments on Trump's news conference that took place on Wednesday, Dec. 11.
It's good the president-elect recognizes Russia stands behind recent cyberattacks, he said, adding it was nice to hear from Trump that during his presidency Moscow will have much greater respect for the U.S.
According to him, both of these facts are positive for Ukraine.
Trump also said the United States is going to do 'some big things' on the F-35 and the F-18 programs.
Although Trump was not asked about Ukraine, the issue was raised before his candidate for the post of secretary of state Rex Tillerson during the first confirmation hearings in the Senate.
Commenting on Tillerson's speech, Herbst said he got the impression that the policy toward Russia is likely to be tough, adding it sounded like a good message to Ukraine.