Republicans Feel Triumph, Fear Tragedy

Tax plan, Mueller’s Russia probe help produce two potential divergent paths

.. The Republican establishment’s bargain with Mr. Trump always has been essentially this: It is worth putting up with his excesses and an undercurrent of mutual mistrust because ultimately he would promote and then sign the Republicans’ long-sought tax cut.

..  Republican plans to make Democratic House leader Nancy Pelosi rather than Mr. Trump the unpopular face of the election year succeed. 
.. Trump voters decide the party and the president they supported in 2016 don’t share their common-sense aversion to running up big bills and leaving them for the kids.
.. Meantime, a failure to agree on a new spending bill forces a government shutdown just before Christmas, and the GOP fails to put the blame off on Democrats. That instantly sullies Republicans’ newfound reputation for governing effectively.
.. Corporate leaders don’t make the kinds of job-creating investments Republicans predict. Meanwhile, the tax cut’s stimulative effect overheats an economy already near full employment, pumps up an overextended stock market and compels the Fed to keep raising interest rates. The bubble bursts.

The Obamacare infrastructure also collapses in 2018, and Republicans now are the party bearing the blame for health-market chaos.

.. Trump world financial entanglements with Russians gave the Kremlin leverage over the eventual president, and it’s shown Mr. Trump obstructed justice to stop investigators from finding out.