A measure asking Colorado voters if they want to raise income taxes by nearly $1 billion a year to pay for public school upgrades is a step closer to the November ballot. KUNC's Bente Birkeland reports.
Update Monday 12:30 p.m. - Supporters of the measure turned in roughly 160,000 signatures to the Secretary of State's office - more than twice the amount required by law.
Democratic senator Mike Johnston of Denver sponsored the underlying legislation. He says gone are the days when the state simply asks voters for a blank check.