The GOP doesn't have the goal of controlling the Executive and Legislative branches?
The republicans have treated the last two democratic presidents as if they are illegitimate regardless of the fact they were elected by majorities of the people. They tried to impeach Bill Clinton on the most preposterous of grounds. They have used unprecedented obstructionism against the current president.
Of course the democrats want to take the House. How is that an abuse of power? Get a grip on reality.