Michele Bachmann delivered a rousing rebuke of President Obama's foreign policy, dismissing his successes and saying he had changed the course of history for the worse.

Addressing a supportive and packed audience at the Conservative Political Action Conference in Washington, D.C., Bachmann blamed Obama for the state of affairs in countries throughout the Middle East.

"Without a shadow of a doubt, the world is better without [Osama] bin Laden and without [Libyan leader Moammar] Gadhafi," she said Thursday. "These are tactical successes. They don't begin to compare with the mess that Barack Obama has made of the Middle East and the strategic foreign policy blunders he's committed."

But moments later, she said former President Clinton had changed the course of history by failing to take out bin Laden despite knowing his whereabouts.

Bachmann compared Obama's failures to those of former President Carter, whose errors she said had "directly led to the rise of modern-day jihad." Her comments on Carter were notable because Bachmann and her husband once worked for Carter's presidential campaign.

"When Barack Obama chose Islamic outreach over Israel, he changed the course of history," she said.

Bachmann's address was one of her first public appearances since dropping out of the presidential race in January. The Minnesota congresswoman hasn't endorsed another candidate, saying she wants to be a force for unity behind whichever contender emerges from the Republican primary.