The national leaders have acknowledged the threat to the party.

But for all of its promise, even the group's leaders acknowledge the challenges.

But leaders of the alliance acknowledge that they face a tough fight.

The party's new leader acknowledges that they have failed to live up to hopes.

At one point he also mentioned the polls, too, which was interesting; political leaders often don't acknowledge them.

Even Republican leaders acknowledge that discontent with the war has become an issue here.

But Republican leaders acknowledge they lack the votes to pass their legislation.

Pakistan's leaders have acknowledged that the law needs to be revised.

But the Shiite leaders who made the new demands acknowledged his influence.

Both leaders also acknowledged continuing disagreements on a number of key issues.