I'm Shocked, just shocked!!
One of two things is happening and probably both. First, maybe, just maybe, to boost their readership, Politico.com has an approved leaking policy with Drudge. Drudge and Instapundit and a few other sites have the ability to boost readership. If Politico is doing this, it is just smart marketing.
Second, maybe Politico.com is doing a good job with its reporting and Drudge thinks they are link worthy. If only Drudge would like my stuff.
I don't see anything sinister in this.