CNN tanked in the cable ratings between August 6 and August 12, losing out to Fox News, MSNBC, and even the History Channel show Ancient Aliens, according to the latest data from Nielsen Media Research. CNN’s competitors, Fox News and MSNBC, defeated CNN handily in the ratings war this week. Fox News took the number one slot for primetime viewership at 2.18 million viewers, and MSNBC came in second with 1.75 million viewers. CNN finished in a distant seventh place, attracting 992,000 average viewers and falling behind HGTV, USA, the History Channel, and TBS in the weekly ratings. The primetime...