Catherine Rampell: Republicans’ closing argument: Be afraid, be very afraid

Immigrants are coming for your children and lake houses. Socialists are coming for your Medicare (huh?). Black football players are coming for your flag. And now the Democrats are coming for your 401(k).Republicans' closing argument: Be afraid, be very afraid.The GOP has had unified control of government for nearly two years now. Yet, somehow, Republicans' promised return to morning in America, that end of "American carnage," still hasn't arrived, according to both their own standard-bearer and