The Environmental Protection Agency on Wednesday slapped down California’s bid for first-in-the-nation greenhouse gas limits on cars, trucks and SUVs, refusing the state a waiver that would have allowed those restrictions to take effect.

“The Bush administration is moving forward with a clear national solution — not a confusing patchwork of state rules,” EPA Administrator Stephen L. Johnson told reporters on a conference call. “I believe this is a better approach than if individual states were to act alone.”

...It was Bush's seventh veto in seven years — all but one coming since Democrats took control of Congress in January. Wednesday was the deadline for Bush to act or let the bill become law....

The bill Bush vetoed would have increased federal funding for SCHIP by $35 billion over five years, to add an estimated 4 million people to the program that provides insurance coverage for children from families who earn too much to qualify for Medicaid but cannot afford private insurance. The joint federal-state program currently provides benefits to roughly 6 million people, mostly children.

A major point of contention with the White House was Bush's demand that nearly all poor children eligible for the program be found and enrolled before any in slightly higher-income families could be covered. He originally proposed adding $5 billion to the program over five years but later said he was willing to go higher as long as his conditions were met.

...Of the 43 million people nationwide who lack health insurance, more than 6 million are under 18 years old. That's more than 9 percent of all children.

House Majority Leader Steny Hoyer, D-Md., said the House will take up the extension question Thursday in a bill that also will make adjustments to Medicare.

"We'll obviously need to put additional money" into the children's health insurance program, Hoyer said, because several states say they will have to remove recipients from their rolls if the current funding level continues into next year.