...Bill also would give the Baltimore City Council the power to establish open primaries for the offices of mayor, City Council president, City Council and comptroller.

...Henry called an open primary “fairer and more democratic.”

“A big chunk of the constituency are not members of the Democratic Party,” he said. “They’ve chosen to eschew partisan affiliation. They have to live here and, numbers being what they are, they don’t have a lot of choice” once the general election comes around.

According to Scott’s research for the 2016 resolution, just six of the 24 U.S. cities with the largest populations had closed primaries...

https://www.baltimoresun.com/news/maryland/politics/bs-md-ranked-choice-voting-20181228-story,amp.html?__twitter_impression=true&fbclid=IwAR3BYs7F7L8pU6nReLM_zfQXW-TAdhR6l-qpJ4K2Gu5QtTz7Jwav0hoKkk8