Yet perhaps the President's most serious political challenge is now being posed by his own party.

Between now and then, both must return to domestic political challenges.

On the one hand it is a great political challenge.

We knew that trying to fix the health care system would be a huge political challenge.

Of course, there's no denying that we face a political challenge.

Now, the political challenges are growing and the military problem is shrinking.

That places it in the camp of the political challenge.

The second is a political challenge which, in my view, we are not taking seriously enough.

What things have to be done within this political challenge?

This is the real political challenge that Europe must face up to.