Bill Clinton are celebrating 45 years of marriage.On Sunday, the former president and secretary of state marked the milestone with separate posts on social media.Hillary shared a throwback photo on Instagram which was taken on their wedding day in 1975.In the image, the couple can be seen smiling at the camera, with Hillary dressed in a $53 (£40) Jessica McClintock white Victorian lace gown, which she purchased at a nearby shopping mall with her mother the night before the wedding.Us trailer