voting records indicate actually cast ballots. In some instances, researchers have actually verified the voting records of people who were interviewed and found that some of them said they voted but did not. Voting is generally considered a socially desirable behavior, just like attending church or donating money to charity. Studies suggest these kinds of behaviors are overreported. Similarly, socially undesirable behaviors such as illegal drug use, certain kinds of sexual behavior or driving while intoxicated are underreported. We take steps to minimize errors related to questions about socially desirable or undesirable activities. For example, questions about voter registration and voting usually include acknowledges that not everyone takes part in elections. The Pew Research Center voter registration question is worded this way: "These days, many people are so busy they can't find time to register to vote, or move around so often they don't get a chance to re-register. Are you NOW registered to vote in your precinct or election district or haven't you been able to register so far?" Do people really have opinions on all of those questions? People have opinions or attitudes on just about everything. Still, "I don't know" is a legitimate answer, and people who are unsure, have no opinion or choose not to answer a question for whatever reason are always provided that opportunity. Why do you typically ask presidential approval first in the survey? The presidential approval question is a very important political indicator. It is a useful summary measure of the president's