Newt Gingrich may not have got the memo but the battle for the Republican nomination is over. Some in the Romney campaign were hoping for a Febuary end but others were fearing it would go on until June and a small number of Republicans even predicted a convention fight in August. All in all, April is not a bad result for Mitt Romney - long enough to test him, short enough to allow him to focus solely on the general for the final six months. Despite the very recent and ugly and negative primaries, Romney's struggle with conservatives and the...