Sounds to me like Joey Potter is throwing her hat into the ring for an Emmy! Katie Holmes has just signed on to portray Jackie Kennedy for a History Channel miniseries titled The Kennedys set to air next year. Greg Kinnear will co-star as JFK. While Holmes seems to have the former first lady's grace and general softspokenness, I have to admit that I'm more sold on Rachel Weisz as Jackie O. You?