Obama, Calderon at odds over drug war

GUADALAJARA, Mexico: President Barack Obama pressed for a new tone in the United States' relationship with Mexico but found no immediate progress on Sunday on the divisions between him and Mexican President Felipe Calderon over the pace of US drug-fighting aid and a ban on Mexican trucks north of the border.

Obama kicked off his second trip to Mexico as president with a friendly 45-minute meeting with Calderon that touched on the vast trade relationship between their two countries, their cooperation on swine flu and the violent Mexican gangs dominating the drug trade on both sides of the border. Their talks came before the start of a lightning-quick three-way summit between the United States, Mexico and Canada.

Often called the "Three Amigos" summit, the meeting of Obama, Calderon and Canadian Prime Minister Stephen Harper began over dinner. The summit's formal talks, the fifth for the three countries, are taking place today.