--A principled stand on reducing the deficit and reforming entitlements is redefined as "pushing Granny over a cliff."
A concern about the implications for the institution of marriage is redefined as homophobic;
--The idea of preventing voter fraud by requiring voters to show an ID, something that is required for almost everything else in life these days; is redefined as "disenfranchising poor or black Americans";
--If you support a woman's right to choose her own destiny (i.e., contraception, abortion etc.) but suggest that it isn't the government's place to pay for it with YOUR money--or the money of people who might oppose abortion or certain types of contraception; they you are redefined as "anti-woman";
--If you want to keep our borders safe and prevent illegal immigration; you are redefined as "anti-Hispanic" and "racist";
--If you oppose socialized medicine then you are redefined as "anti-poor, anti-black, anti-woman, and probably racist and just plain mean.
Notice how every "redefinition" of a principled opposition to a leftist policy has been transformed into an ad hominem , or personal attack?