Absolutely he should be called. His motives in Ukraine are important.I look forward to a trial. I see no legitimate defense calling Biden for example.
Schiff‘s testimony is also critical. We need to know how much contact he had with Ciaramella and what their motives were. How much pressure has he overseen put on witnesses such as Sondland to get them to testing certain way?Calling Schiff is the same thing. “He is partisan” is not relevant to the facts.
Ciaramella needs to testify as well.