Democratic lawmakers are preparing congressional oversight actions targeting Trump family business dealings and companies linked to White House projects if they gain control of the House or Senate in November. Investigations could begin as early as February, with 1789 Capital, a venture firm involving Donald Trump Jr., repeatedly cited as a potential target. Senator Richard Blumenthal has introduced legislation imposing additional taxes on corporate income derived by presidential families from favorable government actions. The bill specifically references Polymarket and Vulcan among entities with investment or advisory ties to Trump family members. These measures remain legislative proposals pending midterm election outcomes.