Gov. Tony Evers of Wisconsin signed into law on Monday new legislative maps that could drastically alter the state’s balance of power‚ giving Democrats a chance to win control of the state’s legislature for the first time in more than a decade. “When I promised I wanted fair maps — not maps that are better for one party or another — I damn well meant it‚” Mr. Evers‚ who drew the maps after the state’s Supreme Court ordered new ones‚ said in a statement. Despite the state being a battleground...