WASHINGTON: Democrats in the US Senate were due to lead a vote Wednesday to codify the right to abortion into federal law in a bid to pin down Republicans on the deeply divisive issue ahead of crucial midterm elections, even though they expect the measure to fail. The move comes amid a political firestorm ignited by a leaked draft opinion that showed the Supreme Court’s conservative majority prepared to overturn Roe vs Wade, a landmark 1973 ruling guaranteeing abortion access nationwide. “If that happens, tens of millions of women will see their freedoms contract in the blink of an eye,” the S…