WASHINGTON — In his most controversial television ad yet, Republican John McCain calls for more domestic oil drilling.

“We went to the moon, not because it was easy, but because it was hard,” the ad’s narrator says. “John McCain will call America to our next national purpose — energy security.”

 

Domestic drilling is not a popular option in states like Florida and California that have oil reserves offshore. McCain also promises to work for lower gas prices and alternative energy sources, tapping into an issue that’s uppermost in voters’ minds.

Democrats said the ad misrepresents McCain’s track record, and dug up several Senate votes where he opposed spending on renewable energy research.

“In his 25 years in Washington, Senator McCain has been a part of the problem, not the solution on energy independence,” said Democratic National Committee spokeswoman Karen Finney.