In the top news of the presidential race, ex-supermodel Christie Brinkley has thrown her support behind Al Gore, saying his “leadership on environmental issues has been inspirational.” Also, the Sierra Club today will begin running TV and radio “issue ads” in New Hampshire slamming Texas Gov. George W. Bush (R) for his environmental record. The ads, which blame Bush for Texas’s serious air pollution problems, come as Bush prepares for his first debate appearance on Thursday in New Hampshire; the Sierra Club hopes the ads will encourage Bush’s opponents to raise the issue during the debate. Meanwhile, Friends of the Earth, which has endorsed Democrat Bill Bradley, criticized their candidate of choice for not pushing for stronger environmental and labor protections in trade agreements.