Well, this is the man who wrote "The Art of the Deal" and regardless of what else one might think of him, he does definitely have "the gift of manipulative gab."

Pretty much everything is little more than a tool to be used in the creation of his version of "Reality." In this case, I would venture that the choice of the word "Marshalling" establishes/supports the perception of him as "a strong leader who's in control of the situation."