We know this is a little long, but take a look at this quote and see if it's palpable enough for you

The great political truth was repeated to you that you had the revolutionary right of resisting all laws that were palpably unconstitutional and intolerably oppressive-it was added that the right to nullify a law rested on the same principle, but that it was a peaceable remedy! This character which was given to it, made you receive with too much confidence the assertions that were made of the unconstitutionality of the law and its oppressive effects. Mark, my fellow-citizens, that by the admission of your leaders the unconstitutionality must be palpable, or it will not justify either resistance or nullification! What is the meaning of the word palpable in the sense in which it is here used? (36)

Palpable. Now, say that that three times fast and you'll have earned your rhetorical device star for the day. Btw, he's using palpable to mean "obvious."

What better way to get your point across than repeating yourself? And Jackson really wants to get his point across. This isn't the only word/motif/image that he echoes over and over, but he is really trying to annoy the Nullies with this bit here. He's actually kind of making fun of them for being big babies.

In all, he's really using the rhetorical device of amplification throughout the text in order to make his points. He keeps bringing up patriotism, for example, because he's trying to tear the Nullies' hearts out at the same time he's trying to convince them to see things his way.