loop in

Verb

 * 1)  To include in communications about something; to keep informed about something.
 * 2) * 2010 January 11, Read Excerpt: Game Change by John Heilemann and Mark Halperin, ABC News (retrieved 24 April 2013) :
 * One day late that fall, Clinton summoned James Carville, the architect of Bill's victory in 1992, to her Senate office. Hillary adored James, had no doubt about his allegiance or discretion—although she hadn't looped him in until now.