TOPEKA, Kan. — A trial to determine whether Kansas’ Republican-drawn congressional map is unconstitutionally gerrymandered opened Monday in Wyandotte County District Court, with a clash over then-Senate President Susan Wagle’s 2020 promise that the party could draw four GOP districts and oust Democratic U.S. Rep. Sharice Davids. Attorneys for a group of Kansas voters suing to overturn the new district boundaries — which divide racially diverse Wyandotte County and transfer Democratic-leaning Lawrence into a strongly Republican western district — launched their opening statements by playing a c…