First of all most of these special elections have been in areas that tend to vote Dem as far as congress/Senate go. Second of all many of the current Dems and some GOPe who are up for election won't be there by election day (Trust the Plan). As Q says "Timing is everything."
Learn how to play chess and read both The Art of War and The Art of the Deal before commenting further.
Sod off, Swampy.