Maya makes an excellent point...
Don jr is a private citizen.
Now private citizens are allowed to stonewall and dictate the terms on which they can appear to congress...
It's worth a listen.
No Russia, No Mueller- just counter intel investigation. people should be very concerned about what is happening. A sitting Senator is telling a citizen to ignore a subpoena and stone wall congress... and hey that's ok... dafuq?
Democrats are in quite the pickle here... politically, it's hazardous to impeach- but in order to uphold the constitution, they HAVE to.