Treasury Secretary Timothy Geithner says he doesn't expect to be retained should President Obama win a second term in November.

"He's not going to ask me to stay on, I'm pretty confident," Geithner told Bloomberg Television in an interview today. "I'm confident he'll be president. But I'm also confident he's going to have the privilege of having another secretary of the Treasury."

Geithner told Bloomberg he would do "something else."

After much speculation over his future, Geithner said in August he would stay until the end of Obama's first term.

Geithner has been a lightning rod for criticism of the economy, and has been attacked by the Republican candidates for president.

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The Treasury secretary said in June that his son would be returning to New York to finish high school, and that "I'm going to be commuting for a while."

Before joining the administration in January 2009, Geithner was president of the Federal Reserve Bank of New York, a post that put him at the center of the government's response to the financial crisis of 2008.

Geithner, 50, said he wasn't concerned about Wall Street complaints over the Dodd-Frank financial overhaul.

"I would not worry too much about them," Geithner said in the interview in Charlotte. "I would worry more about the basic confidence of Americans that they're going to face more opportunities, more likely to find a job, keep a job, save for college, save for a dignified retirement."