As Colorado voters prepare for the upcoming election, the focus is on Amendment 87, a proposed graduated income tax measure that could raise the top income tax rate from about 4.4% to 8.4%. The proposal has generated a significant debate, with supporters arguing it could lead to a fairer tax system while opponents, including notable figures like Ken Salazar, warn it may hinder economic growth and impose heavy financial burdens on residents. Court rulings have allowed the measure to remain on the ballot despite various legal challenges, including a recent rejection by a Denver judge of efforts to remove it. As voting progresses, the implications of Amendment 87, which is seen as a pivotal issue alongside Proposition 136, are being closely scrutinized by business groups, millionaires, and voters across the state.