Pay attention to the First requirement.
Cont...
The second hurdle for a valid subpoena is the "investigation must pursue a valid legislative purpose."
The committee investigation "has not been authorized by its chamber"...
foxnews.com/politics/judge…
Lacking judicial authority.
First, The House Committee impeachment investigations are structured around unilateral rule changes made by Pelosi’s scheme team in 2018 designed to block republicans.
theconservativetreehouse.com/2019/09/28/pel…
theconservativetreehouse.com/2019/10/05/nan…
theconservativetreehouse.com/2019/10/06/fin…