If Hillary Clinton is elected our next President, she will presumably govern with the assistance of Democrat majorities in the House and Senate, leaving only the Supreme Court with a (for the present) conservative edge. 

Syzygy (the alignment of three bodies) is usually momentous. There is no reason to believe a Democratic Syzygy beginning within the year would be anything less than momentous. Especially with a former President as First Spouse.

I prefer a government that is not controlled by a single party because it means that both parties must pretty much agree to any major changes in our country's laws. "Control" of Congress and the White House by a single party relegates the party out of power to the role of spolier or obstructionist or - worse - abdicator to the will of the party in power.

One thing is for sure should the Democrat Party take all the marbles in the coming elections: they won't have anyone at all to blame but themselves should they blunder. Fear-of-failure might actually make the Democratic Party more conservative should they achieve total power. On the other hand, total power might make them arrogant and even more overbearing than they are now. It will be interesting to see the Dems do with total power - should it be given them - and/or what total power does to them.