After three consecutive election cycles of backing the losing team or being part of it, Sen. Joe Lieberman says he plans on sitting out the 2012 presidential race and not endorsing anybody. 

"I'm going to try something different this year," Lieberman said on "Fox News Sunday," chuckling when asked whether he plans on supporting President Obama or presumptive GOP nominee Mitt Romney. "I'm going to try to stay out of this one." 

Lieberman drew the ire of Democrats when he endorsed his friend and colleague Sen. John McCain, R-Ariz., against Obama in the 2008 presidential race. 

Four years earlier, Lieberman ran unsuccessfully for the Democratic presidential nomination, before bowing out and eventually getting behind party nominee John Kerry, who lost to George W. Bush. Before that, Lieberman was Democratic nominee Al Gore's running mate in their losing bid against Bush in 2000. 

Lieberman said Sunday that he's staying out of the "nastiness" of campaigning in 2012. He said he plans to cast his choice in the privacy of the voting booth, and that's it.