He's already gotten rid of Clinton's welfare reform.
Obama has "escalated" EVERY Federal program, which (on paper at least) makes him the "anti-Republican".
The Dems like to claim that the Republicans are the pro-war party, but empirically its not true. The Dems (not GOP) is always the party pushing for "humanitarian" use of American military (eg Kosovo, Rwanda, now Syria, etc). The GOP typically resists these efforts unless there is a clear American interest involved, and the public usually agrees. . .but once there is, THEN the GOP supports military effort.
Obama halted the war in Iraq. You can argue whether what he did there is good or bad, but that's at the very least fairly "anti-Bush".
On the other hand, Bush made a case for, and got Congressional approval for his wars. Not only did Obama not seek (or obtain) Congressional approval for US military action in Libya, I still don't know what the hell our "mission" there was supposed to be. (I'm sure there WAS one. ..just that the President didn't see fit to share it with the rest of us).