Gearing up? Romney calling former aides, supporters as he weighs 2016 bid

Mitt Romney is calling former aides, donors and supporters from his 2012 campaign as he weighs launching a third presidential bid, a senior Romney aide told Fox News -- as the former Massachusetts governor also considers speaking at a Republican Party summit this week in California.

The developments, which follow the 2012 GOP presidential nominee telling donors last week he's considering a 2016 bid, show him inching ever-closer to a decision.

But sources close to Romney, who for months denied interest in another White House campaign, are pushing back on the notion that a 2016 bid is inevitable.