Former White House chief of staff William Daley has dropped out of the race for Illinois governor.
The announcement came less than four months after Daley had said he would challenge Gov. Pat Quinn for the Democratic nomination next year.
Daley told FOX 32's Mike Flannery that he was questioning whether he wanted to devote the amount of time required for a campaign followed by four years of governing. Ultimately, a person close to him said, Daley was not ready to make the 5 to 9 year commitment to dig the state out of the hole it's in.
"I turned 65 last month and I had to ask myself, is this really what I want to do until age 70 or 74?" Daley told FOX 32 News. "I couldn't get enthusiastic about it."
"There was always this gnawing thought," he continued. "I was waking up in the middle of the night."
Recently, Daley had criticized Quinn for his handling of the state's pension crisis and other issues.
When asked if he will now endorse the governor in the race, Daley responded, "No, I won't endorse him. That I won't do."
Gov. Pat Quinn says he respects William Daley's decision not to challenge him for the Democratic gubernatorial nomination. The governor said a divisive primary would have only helped Republicans, "who want to take the state backward."
One of the four men contending for the Republican nomination, venture capitalist Bruce Rauner, says he's now "the only candidate able to offer a clean break from the failed policies coming out of Springfield."
Rauner is vying with state Treasurer Dan Rutherford, state Sens. Bill Brady and Kirk Dillard for the GOP nomination.
Daley is the son and brother of two former Chicago mayors. He had served as Secretary of Commerce under Bill Clinton, chaired Al Gore's presidential campaign, and worked as Chief of Staff for President Barack Obama--but had never run for public office.