Michael Sigman: The name Tea Party evokes — was no doubt conjured to evoke — deep deep associations with The Boston Tea Party, a stirring public challenge to corporate monopoly and monarchy studied by every American schoolchild. Now, thrown together with carefully-chosen words and phrases like “Take our country back,” “socialism” and “Hitler,” the Tea Party purveys the exact opposite — restoring corporate monopolies and viciously rejecting a popularly-elected president.