BOSTON -- With Sen. Barack Obama's Middle East trip making headlines, Sen. John McCain made sure he got a piece of the media spotlight back at home.

McCain Takes Aim At Obama's Foreign Policy Experience

NewsCenter 5's Janet Wu reported that McCain released a television ad blaming Obama for rising gas prices.

"Who do you think is responsible for the rising cost of gas?" the ad asks voters.

"He's Dr. No. He says no offshore drilling, no reprocessing of spent nuclear fuel, no storage of spent nuclear fuel -- no nothing. No nothing. So if you are not part of the solution, you're part of the problem," McCain said.

During his visit to New Hampshire on Tuesday, McCain hammered away on two issues that he insists showcase Obama's inexperience. The latest polls say the Granite State's four electoral votes could go either way.

During that bus ride to a campaign stop, McCain also stepped up his attacks on Obama's foreign policy experience.

"Sen. Obama has never been to Afghanistan before. Sen. Obama has never visited a country south of our border. Sen. Obama is not prepared to be commander in chief," McCain said.

At the Rochester, N.H., Opera House, McCain insisted Obama's refusal to support the surge or acknowledge it's effectiveness is purely a political decision. Yet McCain himself equivocated on troop withdrawals, insisting he won't set a timetable, yet suggesting most troops will be out of Iraq by the end of his first term.

Then he returned to his intended message of the day -- poking fun at Obama's opposition to a gas tax holiday, offshore drilling and building more nuclear power plants.

"Remember the other day Sen. Obama showed up and he had a seal that said something like 'Yes we can'? I think it should say, 'No we won't,'" McCain said.

Speculation was high on the campaign trail on Tuesday that McCain may name his vice presidential candidate this week. McCain praised former opponent and former Massachusetts Gov. Mitt Romney, but wouldn't say if he's on the short list of candidates.