A bill aimed at barring landlords from using algorithms to set rents died in the Colorado Senate on Wednesday after a group of moderate Democrats joined Republicans to reject a more forceful House version of the measure. The crux of the disagreement was an adopted amendment that bill backers charged had been written by a software company fighting the bill. “I’m grateful for my colleagues who sided with renters, but ultimately too many Democrats sided with a corporation under investigation for price fixing against Coloradans who are feeling the worst of the housing crisis,” said Sen.