explosion and a companywide 1:29 moment of silence. newt gingrich reacts to president obama's re-election announcement with some inflammatory words. is the president really trying to create a chicago-style machine to extort contributions from supporters? cnn editor, mark preston is here. the 2012 campaign is shaping up to be really nasty, nastier than 2008. >> i don't think it could be nastier than 2008 but it appears it is going to be. we keep building upon that. yes, we heard a lot of criticism from potential republican presidential candidates yesterday when they heard that president obama officially announced that he is running for president, specifically zeroing in, at least newt gingrich, zeroing in on the number of $1 billion, which is a figure we expect president obama to raise to try to win another term.