"I don't think we should challenge something just because it's put forth by the administration, but I do think we have an obligation to review policies and do oversight," Engel told Reuters in a telephone interview.
Since they must still work with a Republican-controlled Senate to pass any bills, the Democratic majority's greatest influence will be oversight, the ability to call hearings and, if necessary, subpoena witnesses, as they lead committees like Foreign Affairs as well as Armed Services and Intelligence.
HOW DO THE DEMOCRATS SEE RUSSIA?
Democrats plan Russia-related investigations, such as a probe of possible business ties and conflicts of interest between Trump and Russia.