Glenn Greenwald has been championing the cause of uncovering Politico’s alleged political biases for some time now. Many in blog world, it seems, think the new Washington publication is unabashed in towing the party line for the GOP. Main examples thus far: Its owners are close friends with the Bush family, one of its top editors is married to an ultra-conservative power player and many of its stories appear tougher on the Dems than the GOP. New evidence emerged today to support the thesis: Jeff Patch, formerly a reporter with the Politico, will begin a position on Monday as the press secretary for Rep. Tom Latham (R-Iowa).