jawsmith

[Phil LaGassly] had a knack for winning over tough audiences, throwing in little asides and an unscripted joke or two as he went along. […] Andy [LaGassly's speechwriter] would sprinkle in a fair amount of substance here and there, wherever he could, always making sure he came up with a few catchy phrases that were conducive to huzzah; and LaGassly could be counted on to deliver them in exactly the right way. It had been quite an act–the jawsmith and the wordsmith […]

One professional jaw-smith, who came as the self-appointed messenger of American labor wanted a Chinese-wall tariff, and subsidized ships to carry cargoes one way and ballast the other.