Oh brother:
As a part of its ongoing effort to retain exclusive brand licensing rights to a word that's been a part of the English language since the early seventeenth century, Politico has ordered a British website called Tory Politico to stop using the word "politico," because -- who knows? Maybe you might accidentally end up at the latter site and become confused as to why your favorite Beltway press-release mill has suddenly become obsessed with Parliament and Gordon Brown and Torchwood or something?
Of course given the word's origin:
politician
1588, from politics (q.v.). Colloquial abbreviated form pol is attested from 1942. Alternate form politico (usually in a derogatory sense) is attested from 1630 ...
... you can understand why Politico would assume they own it.