I guess this is what they really mean by "Black Irish"

First Obama had to release his birth certificate to prove that he is an American. Now he has released his ancestoral tree to prove that he is actually Irish:

The President and the First Lady are on a visit today to his Irish ancestoral home of Moneygall. This will of-course greatly improve his re-election bid back home. First time around he bamboozled the African-American community to vote for him en masse, appealing to that part of his Black heritage... until it became a liability in the form of his pastor and friend for over 20 years, Rev. Jeremiah Wright. Now that they are onto his game, he will now attempt to bamboozle 40 million Irish-American voters, to make up for any loses he may suffer from the African-American voters... although I don't expect him to suffer much anyway.