The clock is ticking on Cafta. In a few days' time committees in Congress will draw up legislation to implement the Central America Free Trade Agreement. George W. Bush, US president, wants Congress to approve the deal before the July 4 recess. But it is far from clear that he has the support he needs to bring it to a successful vote.

The majority of Republicans in both houses support the trade deal. But most Democrats in the House of Representatives look set to vote against it on populist protectionist grounds. They should think again. Cafta is manifestly in the US national interest.