Can salesmanship about the tax bill change the GOP's midterms fortunes?

Can salesmanship about the tax bill change the GOP's midterms fortunes?  Washington Post Dems see tax bill as giving them midterm advantage  The Hill With This Tax Cut, Trump and the GOP Are on the Side of the Growth Angels  RealClearPolitics What happens next with the Republican tax plan, month by month  Chicago TribuneFull coverage