Charter schools have worked well in Denver

See Denver’s Education Stakes: Unions want to kill Michael Bennet’s successful reforms. WSJ editorial. Excerpt:

"While some charter systems are better than others, there is wide agreement that Denver’s has been successful. A 2016 study from economists at MIT, Duke and Yale found “large achievement gains from charter school attendance” in Denver. Stanford’s City Studies project finds impressive test-score improvement in Denver relative to the rest of the state. One finding: “Denver black students from charter schools post greater learning gains in reading” than students at traditional public schools."