You really don't like Jews, do you Agricola?
Sorry, what?
This is an allegation that a foriegn government, via a lobby group, tried to (and may well have obtained) influence one of your elected representatives in order to get them to interfere with a criminal investigation into espionage carried out by that foriegn government. If this was any other foriegn government there would be jail time and severe consequences for the individual concerned at the very least.
Of course, to point this out means that I am an anti-semite. Hurrah for logic!
In any case, does the NSA spend a lot of time wire-tapping poli-critters?
That remains to be seen, but one imagines that they do wiretap foriegn intelligence agents. That could well be how they got the recording.