Republican presidential hopeful Jon Huntsman will announce the endorsement of former U.S. Homeland Security Secretary Gov. Tom Ridge Friday in an event at St. Anselm College in Goffstown. Ridge, a former governor of Pennsylvania, plans to attend a press conference with Huntsman at the college’s New Hampshire Institute for Politics. In a statement by the Huntsman campaign, Ridge said Thursday that Huntsman is “a serious, insightful leader.” Huntsman, 51, a former Utah governor and ambassador to China, said he’ll be counting on Ridge for help and counsel.