In a speech in Chicago, Sen. John McCain (R-AZ) promised that if he is elected president the United States will “honor its international agreements, including NAFTA, and we will expect the same of others.” McCain said he would not “undo the gains of years in trade agreements now awaiting final approval.” He also sharply criticized the farm bill recently passed in Congress, saying he would seek to end all farm subsidies “not based on clear need.”

The New York Times political blog details sparring between McCain and Sen. Barack Obama (D-IL) over Iran.