KANSAS CITY, Mo. — The Kansas Supreme Court on Wednesday upheld a Republican-drawn congressional map that divides racially diverse Wyandotte County, a blow to Democrats who argued the redrawn lines diluted minority voter power. The decision means Wyandotte County, a Democratic stronghold, will be split between two districts — with the northern half almost certainly represented by a Republican and the south included in a reshaped 3rd District that incumbent Democratic Rep. Sharice Davids will struggle to hold. The decision comes as Democrats nationally are heading into a tough election cycle an…