Sarah Palin’s jaw-dropping announcement that she is quitting her job as Alaska governor before finishing even her first term has divided Republican ranks and the wider political community in a very familiar fashion.

Many establishment GOP operatives and political commentators of various stripes were withering, both about the decision and the way she announced it — in a jittery, hyperkinetic news conference that rambled between self-congratulation and bitter accusations at the foes she says are eager to destroy her.

“I think Sarah Palin is on the verge of becoming the Miami Vice of American politics: Something a lot of people once thought was cool and then 20 years later look back, shake their heads and just kind of laugh,” quipped Republican media consultant Todd Harris.