In short, what the Democrats plan is not truly serious investigations worthy of Congress’ time and effort, but merely a total obstruction compaign to tie up all of the Trump administrations time answering all the investigations.
Note to Trump: 1. Have every cabinet officer appoint an individual to a “Deputy for Congressional Investigations” position, as the only point person each department will supply to Congress for its investigations, each in due time with the time that one individual has. 2. Tell the departments to respond as timely as the FBI and DOJ have been responding to Congress now; in other words, delay and stonewall everything and if it is not yet “classified” make it, everything, “classified”.
Good idea on a one-time-only basis.