" Conservative: A statesman who is enamored of existing evils, as distinguished from a Liberal, who wishes to replace them with new ones" (Ambrose Bierce 1847-1914. Nothing has changed much in the US since then!)
Republican:Bit late to get the US government out of American lives. It is everywhere you look,if you look closely, but there is this Republican obsession with big government. And it has become progressively more liberal over the decades.It is noticeable that, in a party that thinks universal healthcare is the work of socialist evil-doers, the presidential candidate introduced it to his own state.
Slowly and inexorably, the US has become, not more like France but more, perhaps, like the Netherlands ('Romneycare' was and 'Obamacare' is, like the system of compulsory health insurance in the Netherlands). All that remains is to give its workforce such things as proper holidays and more protection against summary dismissal and it may be as happy a place as others !
Democrat: In favour of something a bit closer to our welfare state. Believes that only 'Uncle Sam' is in a position to provide the remedy to certain shared problems (disasters, saving the car industry, healthcare insurance etc)