GOP on House committees are rebelling
https://republicans-oversight.house.gov/wp-content/uploads/2019/10/2019-10-03-COR-Members-to-EEC-re-Ukraine-Subpoenas.pdf

Rep. Cummings sent a subpoena to the WH without holding a business meeting, without any input or voting by the minority.

House Oversight Republicans noted that in January, Cummings promised to consult ranking member Jim Jordan (R-OH) before issuing subpoenas.

Cummings said, “Members deserve the opportunity to go on the record for some of the most important work they will do, and the public deserves the opportunity to see them do that work in the open.”

The Republicans contended that by issuing this subpoena unilaterally and without a business meeting, Cummings continues to deny the American people transparency and accountability about the committee’s oversight actions.

Rep. McCarthy - minority leader wrote an op-ed that's pretty scathing:
Ignore the hype — this is not an impeachment inquiry
https://thehill.com/opinion/white-house/464140-ignore-the-hype-this-is-not-an-impeachment-inquiry
https://archive.is/xS1QT

By Andrew C. McCarthy, opinion contributor — 10/03/19 09:30 AM EDT

 
There is no impeachment inquiry. There are no subpoenas.
You are not to be faulted if you think a formal inquest is under way and that legal process has been issued. The misimpression is completely understandable if you have been taking in media coverage — in particular, reporting on a haughty Sept. 27 letter from House Democrats, presuming to direct Secretary of State Mike Pompeo, on pain of citation for obstruction, to cooperate in their demands to depose State Department officials and review various records. 
The letter is signed by not one but three committee chairmen. Remember your elementary math, though: Zero is still zero even when multiplied by three.
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What is portrayed as an “impeachment inquiry” is actually just a made-for-cable-TV political soap opera. The House of Representatives is not conducting a formal impeachment inquiry. To the contrary, congressional Democrats are conducting the 2020 political campaign. 
The House has not voted as a body to authorize an impeachment inquiry. What we have are partisan theatrics, proceeding under the ipse dixit of Speaker Nancy Pelosi (D-Calif.). It raises the profile, but not the legitimacy, of the same “impeachment inquiry” House Judiciary Committee Chairman Jerrold Nadler (D-N.Y.) previously tried to abracadabra into being without a committee vote.

(it goes on and is worth a read)

The gloves are off.
Punches are not being pulled.
 >>/9666/ It's all starting to crash around their heads. 
This is only the beginning.