It appears the Democrats didn't think this through.
According to Vindman, Trump’s call to Ukraine President Volodymyr Zelensky on July 25 left him “deeply troubled” that the president was attempting to “subvert U.S. foreign policy,” The Washington Post reported:
Hume, reacting to the Post’s write-up on Twitter, highlighted that Vindman’s supposed fear is “illogical,” since it is the president who sets the U.S. foreign policy agenda.
“This from the article: ‘he was deeply troubled by what he interpreted as an attempt by the president to subvert U.S. foreign policy…’ There is a huge fallacy in this. Anyone know what it is?” Hume wrote.
Hume clarified the “huge fallacy” in a reply, explaining, “it’s the fact that the president is the constitutional author of foreign policy, so the idea he is ‘subverting’ it is illogical.”