A political strategist known for helping a Tea Party challenger unseat former House Majority Leader Eric Cantor will manage the gubernatorial campaign of Republican Dan Cox. Cox announced Friday that Zach Werrell will serve as his campaign manager, touting his “extensive statewide campaign experience with national contacts.” Werrell managed the 2014 congressional primary election campaign of Republican Dave Brat of Virginia, who ousted Cantor in a stunning upset. Cox faces Democrat Wes Moore in Maryland’s November election. Werrell, who grew up in Southern Maryland, is co-author of “How to Bag a RINO: The Whiz Kids Who Brought Down House Majority...