National health insurance: for 40 years the words have meant politically impossible, utopian.

Yes, it is politically impossible for "Big 7" leaders to do more.

The president, because it's politically impossible, can't take the Fifth.

They didn't proceed against her because it was politically impossible right then.

Both parties believe that it is a politically impossible goal.

It could become politically impossible to just wipe them out.

Even if the draft was a good idea, it would be politically impossible to achieve.

But before the attacks, it was psychologically and politically impossible to take those measures.

Once food banks become well established, it can be politically impossible to return responsibility for meeting the needs of hungry people to the state.

So what was politically impossible last week is possible now.