Keith Olbermann's feud with members of Rupert Murdoch's media empire seems to be expanding. Last night, Page Six's Paula Froelich called the MSNBC talk show host to comment on a story which suggested Olbermann was jockeying with Chris Matthews for Tim Russert's job as the host of Meet the Press; worse was that the claim that Matthews had even been heard discussing with a man presumed to be his agent at Russert's memorial service in Washington. Olbermann fired back, quickly naming Froelich the "World's Worst Person," ahead of Murdoch himself and the Rupe-owned Sun newspaper. The Post's item was published in the Post today. Olbermann's lashing after the jump.