Also, most people think he's going to be the Democratic nominee, so negative attack on him might hurt in the general. At this point with her, it seems less likely that his barbs will hurt her in her next election- reelection to the Senate in 2012.
Democrat Barack Obama's big lead over rival Hillary Clinton slipped slightly but is still substantial two days before South Carolina's presidential primary, according to a Reuters/C-SPAN/Zogby poll released on Thursday.
Obama's lead dipped three points overnight to give him a 39 percent to 24 percent edge over Clinton in the rolling tracking poll. John Edwards climbed four points to reach 19 percent --within striking distance of Clinton and second place.
The problem with this argument is you can make exactly the same argument about Social Security," he said of Obama's opposition to mandatory coverage. "What George Bush says is he wants people to be able to get out of the Social Security system, choose, elect to get out of the Social Security system. Well, that's exactly what this argument is."