Click here to watch "No Change."

To the Obama campaign, John McCain has had a running mate beside him long before Alaska Gov. Sarah Palin -- President Bush.

In a new ad released today -- pre-emptively stealing some thunder from the Republicans' convention in the Twin Cities this week -- Barack Obama charges that there will be "no change" with McCain as president, regardless of Palin's addition to his ticket.

"Well, he's made his choice. But for the rest of us, there's still no change," an announcer says over footage of Palin and McCain together. The spot goes on to criticize McCain on the economy, Iraq, and, of course, Bush: McCain "votes with George Bush 90 percent of the time," the announcer laments. The ad concludes by saying, "While this may be his running mate [showing Palin on the screen], America knows this [switching to Bush] is John McCain's agenda. And we can't afford four more years of the same."

There has been some controversy over how the Obama campaign has reacted to McCain's veep choice. While Obama and his running mate, Sen. Joseph Biden, D-Del., cordially welcomed Palin into the race, campaign spokesman Bill Burton had harsher words about her, which Obama has since distanced himself from. This spot, however, was carefully crafted not to mention Palin by name or criticize her. The focus, and the Democrats' attack strategy as a whole, remains on McCain and an unpopular Republican Party. It also subtly gnaws at one of the reasons many believe McCain picked Palin: her reputation as a reformer, not a Washington insider. Asserting that she won't make a difference as his running mate implies that she doesn't have what it takes -- be it experience or an "outsider" mindset -- to be vice president.

While this spot has triggered the most talk, Obama's campaign released two other ads Saturday in local buys addressing specific issues.

In an ad running in Detroit, an announcer says that while McCain has turned his back on the ailing auto industry, Obama supports measures that helps "revitalize" the city and its auto workers.

Biden takes center stage in another ad running in Northeast Pennsylvania. "Scranton" recounts what Biden has learned about working hard while growing up there and draws parallels between his childhood and Obama's. "Barack Obama learned the same lessons while being raised by a single mom and his grandparents -- responsibility, determination, respect, to stand up for the dignity of all our families," Biden proclaims. "So it's good to be coming home -- and bringing home a friend."