If the blue wave in the midterm elections falls short, there is every reason to believe that a Republican Congress, freed from the immediate threat of elections, would do what it narrowly failed to do last year: repeal the Affordable Care Act. This would cause tens of millions of Americans to lose health insurance and would in particular hit those with pre-existing conditions.
But the attack on the social safety net probably wouldn’t stop there: Longstanding programs, very much including Social Security and Medicare, would also be on the chopping block. Who says so? Republicans themselves.
Social Security Works - Washington 