Obama's honeymoon will end quickly enough.
The issue, unfortunately, is not Obama - who is no doubt a very talented politician and charismatic man.
The issue is that millions of people - including many people who vote 'Republican' have accepted, most of them without questioning, the initial assumptions of the Welfare State - that the 'third rails' are all here to stay forever, that the post-New-Deal system is all good, and so forth.
Until the conservatives manage to create a consistent positive program - what are we going to do to fix America? - as opposed to just whining 'vote for the Republican because the Democrat is slightly worse', you're just postponing the collapse of America.
Now, I do not mean that America will become something like an Argentina, Take Two.
Rather, I think the welfare-statists will find some form of point at which they can take a lot of money in taxes, but still not enough to screw over the economy completely, and America will pitter-patter like this for a few more decades or even centuries - think of the European countries. You will even have economic growth and moderate wealth. But nothing even approaching the greatness you could have had, had you been free.