Judy Woodruff:

In the day's other news- The Pennsylvania's Supreme Court threw out the state's congressional map. It ruled that districts had been so heavily gerrymandered to benefit Republicans that it violated the state's constitution. The court gave the Republican-led legislature until February 9 to fashion a replacement. But GOP leaders said that they would appeal to the U.S. Supreme Court.

This was the third day of Turkey's military offensive against U.S.-backed Kurdish fighters in Syria. The Turks say that the Kurds are allied with Kurdish rebels inside Turkey. Today, allied fighters, plus Turkish artillery, fired at Kurdish militia in the northeastern enclave of Afrin.

And Turkey's President Recep Tayyip Erdogan vowed to continue, despite the cost.