Keystone is topic that should of gone away years ago, but the right knows it's audience, they know that a word can drive an audience. It was like Benghazi, anything easy, just don't let facts or reality get in the way. Even better let's have an investigation, and another, just keep the topic going. Lie, mislead, do it over and over, just keep the word out there. When the truth comes up, have another investigation, lie again, repeat over and over.