Elijah Cummings is threatening to get to Trump by holding him in contempt due to his allegedly lackluster response to the committee's requests. As Fox New Reports:
In a letter over the weekend, Cummings scheduled one for Wednesday morning but said the scope will not be limited -- and reiterated his contempt threat in stark terms.
“Based on the record before us, I am confident that the Committee could move forward with contempt against you immediately, particularly since your defiance of the Committee’s subpoena was so flagrant,” Cummings wrote. “... You will be expected to answer all of the Committee’s questions, including questions about specific White House officials and allegations of retaliation against the whistleblower. If you answer all of these questions, there would be no need for the Committee to pursue contempt against you in the future.