(Newser) – The Illinois Supreme Court put Rahm Emanuel back on the ballot for Chicago mayor today, reviving his campaign to lead the country's third-largest city. In the unanimous ruling, the justices called the appeals court's basis for deciding that Emanuel could not be on the ballot "without any foundation in Illinois law." He had been thrown off for failing to meet a residency requirement—mainly because he'd been in Washington working as President Obama's chief of staff.

Within minutes of the ruling, Emanuel was at a downtown Chicago public transit station shaking hands with residents. He never stopped campaigning as the controversy evolved. His spokesman said Emanuel was en route to the campaign appearance when he received word of the ruling and was scheduled to participate in televised debate this evening. (Read more Rahm Emanuel stories.)

