The overwhelming majority of people who watch cable and broadcast newscasts and topical variety shows are unable to identify the party that now controls Congress, name the current secretary of state, and name Britain's new prime minister, according to the new Pew Survey on News Consumption. The national average for answering those three questions is only 18 percent, the study found; only 10 percent among viewers of the CBS Evening News With Katie Couric , by far the lowest ranked among the nightly news programs. The survey said that 21 percent of the viewers of NBC Nightly News With Brian Williams could answer the questions; 19 percent of the viewers of ABC World News with Charles Gibson could . Ranking higher than any of the nightly newscasts, however, were Comedy Central's The Colbert Report and The Daily Show with 34 percent and 30 percent respectively.