The issue that could tip the scales in the Texas Senate race

All eyes are on the Senate race in Texas, the outcome of which may determine control of the Senate in Washington; and with more than half a billion dollars spent so far, the contest between Republican Attorney General Ken Paxton and Democratic State Representative James Talarico is the most expensive non-presidential race in U.S. history. "Sunday Morning" national correspondent Robert Costa talks with the candidates' supporters, and with local observers, about a race that has drawn interest from around the country, and how the rising cost of food, gas and housing could prove a tipping poi