The Bush administration hopes to persuade Congress to at least triple spending on malaria control to $300 million by 2008.

Companies that make such calculations every day are trying to persuade Congress that would be just too complicated and volatile.

For now, the first challenge facing the president comes in persuading Congress.

But when it comes to persuading Congress, he has something more important.

The biggest hurdle may be persuading Congress, which has to approve the deal.

Why the difficulty in persuading Congress and the nation of its merits?

The agency is in the midst of a major push to persuade Congress to budget money to start construction of the station.

If he turns out to have been wrong, he could have a difficult time persuading Congress to appropriate more.

Scientists finally persuaded Congress that wetlands are remarkable biological systems deserving protection.