You can find that on the Internet. But Obama has enough trouble with English. I don't doubt that Jarrett understood and could speak Farsi at one point, but if you lived in a country for the first 5 years of your life, half a century ago, how much would you really retain?
Some of Jarrett’s past suggests connections to the CIA fringe. And long term contact to Iran after her childhood.
I cannot support that with direct evidence, but I suspect the statements about her ability to speak Farsi fluently are correct.
I once found a video on the web that said it was a speech Obozo made in Farsi. when I tried to look at the video, it had been removed. I also suspect Obozo is fluent with Farsi.
There have been suggestions that he had CIA involvement after a time at Columbia University.