DELAFIELD, Wis. (AP) – A Civil War soldier from Wisconsin who made a valiant last stand at Gettysburg might finally receive the nation’s highest military decoration. Descendants of 1st Lt. Alonzo Cushing have pushed for years to have the Delafield soldier awarded the Medal of Honor. However, they needed Congress to grant an exception to the rule that Medals of Honor be awarded within two years of the act of heroism.        That happened Friday as part of a defense bill sent to President Barack Obama. If he signs it, the Defense Department can choose to recommend the medal for Cushing, and Obama can decide whether to approve it. Cushing was 22 when he died. Although grievously wounded he helped defend a Union position that could have turned the tide in favor of Confederate forces.