My reaction to the first: I doubt relying on a class warfare argument gets them anywhere in the general election. It doesn't get anywhere with me. Republicans no doubt will rally behind it, but who else?
On the debt: it's hard to blame a president trying to pull us out of a deep recession for adding to the debt. Although I think some people won't appreciate this so it should be effective for them to an extent. Obama should be able to take them head-on on this issue, though.
Better arguments the Republicans should focus on instead: the president's regulations are strangling jobs. Many people believe this. Also, look at what this president has accomplished with jobs - not much. He hasn't even tried.