At the center of controversies and charm offensives, the spouses of US candidates vying for the White House seem to be everywhere on the campaign trail and often on the front line.
In contrast to the traditional and reserved Laura Bush, who steps down as First Lady in January 2009, this campaign's lineup of spouses -- including former president Bill Clinton -- offers an eclectic array of personalities and styles.
"These days, political spouses can be as benign as a smiling red-carpet date or as deadly as a chief strategist, or both," Gloria Borger, a US journalist and commentator.
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