John Avlon writes on the Daily Beast:
The Birthers were back in force at the National Tea Party Convention in Nashville.
The high-profile resurgence of the Birther claims on cable television provoked much self-satisfaction from liberals as the latest evidence of the influence of wingnuts on conservative politics.
But there’s an inconvenient truth liberals are going to have to confront: The Birthers began not on the right, but on the left.
Investigations for my new book, Wingnuts, revealed that the Birther conspiracy theory was first concocted by renegade members of the original Obama haters, Party Unity My Ass, known more commonly by their acronym, the PUMAs. They were a splinter group of hard-core Hillary Clinton supporters who did not want to give up the ghost after the bitter 50-state Bataan Death March to the 2008 Democratic nomination.