Ellsworth told the Evansville Courier & Press on Monday that he won't run for any office in 2012. Ellsworth lost to Republican Dan Coats in November's U.S. Senate race to succeed Evan Bayh, who did not seek re-election.
His decision not to seek office next year comes days after Evansville Mayor Jonathan Weinzapfel announced he would not seek the Democratic nomination for governor.
U.S. Rep. Mike Pence says he'll announce within months if he'll seek the Republican nomination for governor.
Republican Gov. Mitch Daniels can't seek re-election because of term limits.
Information from: Evansville Courier & Press, http://www.courierpress.com