By Joseph Ax (Reuters) – Courts in North Carolina and Pennsylvania on Wednesday approved new congressional districts in twin victories for Democrats, after Republican efforts to install more advantageous maps for their party failed in both states. A panel of North Carolina judges rejected the latest map produced by the Republican-controlled General Assembly, ruling that it did not meet the standards of partisan fairness that the state’s Supreme Court set earlier this month. Instead, the judges adopted a map drawn by several court-appointed experts. The new map includes seven likely Republican …