ສະຫລຸບຜົນ ການເລືອກຕັ້ງຂັ້ນຕົ້ນ ຢູ່ໃນ 8 ລັດ ແລະ ເຂດດີຊີ ຂອງສະຫະລັດ

Americans in eight states and the District of Columbia voted in primary elections Tuesday, including Pennsylvania, a battleground in November's presidential election. Mike O'Sullivan reports, the party preference contests are taking place amid protests over the death of a black