This gesture is the Satanic salute, a sign of recognition between and allegiance of members of Satanism or other unholy groups.Well, not exactly. The sign at the right is the deaf sign for "I love you," a composite of the American Sign Letters (ASL) finger spellings "I," "L," and "Y."
Yes, Satanists, Luciferians, and rock musicians use the sign or a similar one to mean something dark or evil. But you have to look at things in context. Lumping pandering politicians and wild musicians trolling for publicity into the same category in this instance is a mistake.
The fact is that a sign or word means what its users and audience understand it to mean. One uses pictures or squiggles or sounds to represent thought. In order to be understood one must use the right symbols in the right way for the audience one is communicating with. Even if the hand sign above was satanic in origin or in meaning to a few, it still means "I love you" to the vast majority of the intended recipients. If viewers see the sign as "I Love You," and that message seems congruent with the perceived intentions of the maker of the sign, then it does in fact mean, "I Love You."
And who really believes that Dan Quayle, Amy Grant, Pat Robertson, Ken Copeland, John Edwards, and Mahmoud Ahmadinejad would really flash devil signs to large, conservative crowds? What would be the point?
The accepted meaning of symbols change (or are changed) through time. The swastika was for centuries a harmless Indo-European symbol of good luck, a variation on the many life wheel symbols. It is still that innocent sign to many in India who practice the old ways. Over here in the Jew-DayO!-Christian bizarro world, however, it has been perverted by that psychotic, hateful Tribe who run the schools and the media into the ultimate symbol of evil. Same situation with the Confederate battle flag, which is misinterpreted today by igmos (id est, most of America) as a sign of slavery, when it never was intended to mean any such thing.
In any case, a man is judged by his actions, not just by his words (or signs). The words as well as the signs could be totally disingenuous. Are those words then evil, too? Gets pretty complicated if you let it. It is easier and more reliable to judge politicians by what they do and then compare it to what they said they were doing or going to do. Simpler still, don't listen to them at all, just watch what they do.