tough sell
hard sell
not an easy sell

But that would be a tough sell because $72 million has just been spent on the highway.

In the early days, the interview was a very tough sell.

With the players out of action for almost seven weeks, it would obviously be a tough sell.

But studies show that the message will be a tough sell.

Yet the banks may have a tougher sell than they think.

But he said it was going to be a "tough sell" and could take a long time to put into effect.

But the magazine might be in for a tough sell.

If there wasn't any reason to do it, I'd have a tough sell.

Trade, in the final year of the Clinton presidency, has become a tough sell.

If they are going to ask $299, I think it will be a tough sell.