Glenn Kirschner @glennkirschner2 13 hours ago

The way you contest a subpoena is to show up, assert a viable privilege if you believe you have one and then let the courts decide. If you fail to appear, you get locked up. Congress has inherent contempt power. It needs to use it in an effort to promote respect for the process.
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TRUMP AND HIS WHOLE FAMILY WILL BE IN JAIL BY 2020 election