Senior OMB official Mark Sandy testifying on Capitol Hill in closed-door deposition
Source: CNN
Washington (CNN)A senior career official at the Office of Management and Budget arrived on Capitol Hill Saturday for his closed-door deposition in the House impeachment inquiry into President Donald Trump.
Mark Sandy, who has served under both Republican and Democrat presidents, is the first OMB official to meet with impeachment investigators after others, like OMB director and acting chief of staff Mick Mulvaney, refused.Sandy received a subpoena Saturday morning to appear before lawmakers, after his attorney said he would be willing to testify so long as he was subpoenaed.
"In light of an attempt by OMB to direct Mark Sandy not to appear for his scheduled deposition, and efforts to limit any testimony that does occur, the House Intelligence Committee issued a subpoena to compel his testimony," an official working on the impeachment inquiry told CNN. "As required of him by law, Mr. Sandy is complying with the subpoena and answering questions from both Democratic and Republican Members and staff."
Political appointees in the office have fought subpoenas, declined to provide documents, and tried in other ways to stonewall the probe, which is focused on whether Trump withheld US military aid to pressure Ukraine to conduct investigations he could benefit from politically.
Read more: https://www.cnn.com/2019/11/16/politics/mark-sandy-deposition-impeachment-inquiry/index.html
Full headline: Senior OMB official Mark Sandy testifying on Capitol Hill in closed-door deposition in impeachment inquiry
Interesting that the article mentioned that he "officially" received a subpoena this morning (per request).
The one thing to note - I *think* all of the witnesses who have testified have been civil service - either current or at some point during their careers, even if they were serving in Schedule B (special hire) or C (appointee) positions. So like my own agency, they were well-steeped in the issues of Congress, ethics, the courts, and subpoenas. They literally put the fear of god in people when you work for the federal government!
= new reply since forum marked as read
---Mr. Sandy might be bringin America some...insight, shall we say
This reporter is with Courthouse News; she's on the scene and I'm checking her posts for updates (yes, like an idiot) every four minutes: https://twitter.com/MMineiro_CNS
Say, maybe Mr. Sandy is putting the "fear of God" into a few punkass gopeabrained reps...!! 
Every time someone testifies, new names get mentioned and eventually those people get added to the list to appear!
From that twitter account you linked to - this tweet was instructive -
Link to tweet
TEXT
Megan Mineiro @MMineiro_CNS
· 2h
Replying to @MMineiro_CNS
Based on experience covering open hearings I would guess Sandy is close to wrapping up his opening remarks and questioning is gearing up.
Megan Mineiro @MMineiro_CNS
Sure to be a fiery exchange inside the SCIF with Democrats Jamie Raskin & Eric Swalwell across from Republicans Jim Jordan & Mark Meadows.
156
10:33 AM - Nov 16, 2019
Swalwell and Raskin are PERFECT to go head-to-head!!!
I saw Raskin first hand on the Rules Committee when they were marking up the resolution that defined how the Impeachment Inquiry public process would unfold. He was doing some major GOP smack-downs. 
