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Sheila Dixon

How could Sheila Dixon not know of DeRay Mckesson?

Sheila Dixon, who wants to be mayor of Baltimore again, says she'd never heard of DeRay Mckesson before he filed as a candidate for the same office. In telling a Baltimore Sun reporter that, Dixon sounded out of touch. Or maybe she was being disingenuous. Either way, she does not look good.

Mckesson has 299,795 followers on Twitter; he's been one of the most prominent activists for justice and reform since a police officer shot Michael Brown to death in Ferguson, Mo., a year and a half ago.

Mckesson is from Baltimore. He is one of the best-known faces and voices of the Black Lives Matter movement. He's made appearances on national television; he's been the subject of...