With Republicans in absolute power, the tables are turned. The preferred target of investigation remains HRC, but a miasma of concerns surrounds DJT. What to do? Double down on HRC? That was the plan if she had been elected, but now, maybe too transparent a tactic.
If you are a Republican in Congress thrilled with finally possessing power to dismantle the federal government - "see, we told you the federal government does not work, except for the military" - you avoid investigating DJT.
Any investigation of DJT, once started, makes him look guilty. Any information uncovered may make him look guilty.
Republicans don't want that. Republicans in Congress will seek to water down any investigation and try to distract from what they are doing. Ironically, policy discussion, which they avoid during election campaigns with ad hominem attacks on opponents, may be used to distract from substantive accusations against the White House. But don't worry, discussion will focus on how important their proposals are for the financial survival of the nation.
Don't expect a sudden shift to substantive treatment of the issues any time soon.