ທ່ານໂອບາມາ ແລະທ່ານຣອມນີ ໃຊ້ຄວາມພະຍາຍາມຂັ້ນສຸດທ້າຍເພື່ອໃຫ້ຄົນປ່ອນບັດເອົາຕົນເອງ

President Barack Obama and Republican nominee Mitt Romney are campaigning across the country and around the clock, in a final drive for votes before Tuesday's presidential election. As VOA's Kent Klein reports, many public opinion polls show the two candidates virtually tied.