Randy and Ellen live with their three children, Josh (born 1998); Chris (born 2000); and Brad (born 2003). Josh is Ellen's child by a previous marriage and she has signed a written agreement allowing her former husband to claim the dependent exemption for Josh. In 2014 line 47 of Form 1040 is $1,558. What amount can they claim as a child tax credit on line 52 of Form 1040? Can Ellen's ex-husband claim the child tax credit for Josh