A concordance is the list of every significant term in a text along with the immediate context of that term. For example a typical line in the "Trump on all Issues" page looks like this:
on pharmaceutical : Because of the fact that the pharmaceutical companies -- because of the fact that the pharmaceutical companies are not mandated to bid properly, they have hundreds of billions of dollars in waste. (2016/03/03)
Click on the above and you will go to the exact point in the debate in a pop-up window.
The above line is made of three elements: a topic, a candidate's name and a comment. The topic is shown in red, the candidate's name in a shaded box. The comment that contains the topic appears next.
Comparison of views of many candidates on a given issue
You can also compare the comments of different candidates on a specific issue. For example, if you want to contrast the opinions of Clinton and Trump on Abortion, choose "Clinton and Trump on Abortion" from the links; on that page you will find half a dozen entries about this issue:
on aborted : And what happened is friends of mine years ago were going to have a child, and it was going to be aborted. And it wasn't aborted. And that child today is a total superstar, (2015/08/06)
on abortion : And I said if you let it run, that I hate the concept of abortion. I hate the concept of abortion. (2015/08/06)
on Planned_Parenthood : They don't mind having big government to interfere with a woman's right to choose and to try to take down Planned_Parenthood. (2015/10/13)
on pro-life : And I am pro-life. And if you look at the question, I was in business. They asked me a question as to pro-life or choice. (2015/08/06)
on pro-life : And I am very, very proud to say that I am pro-life. (2015/08/06)
A history of compiling comcordances
The first major concordance for an English text was published in 1550 for the Bible. Later on concordances were created for the works of Shakespeare and other classic authors. In 2016 Who Said So Network applied the concept of concordance to the transcripts of the United States Presidential Debates. In the "Concordance of the 2016 Debates" website there are dozens of pages, containing hundreds of topics.