we're digging deeper on today's breaking news. president trump's former attorney and fixer michael cohen pleading guilty in special counsel robert mueller's russia investigation. cohen now admits he lied to the u.s. congress about a failed project to build a trump tower in moscow. cnn's brian todd has been looking into the trump administration's many attempts to do business in russia over the years. brian, what are you finding out? >> we've learned that there were at least two attempts by donald trump to build trump towers in moscow in recent years, but his dreams of scoring big real estate deals in russia go back decades. the swagger, the sheer capitalist ambition were impressive. but success in real estate in russia eluded donald trump. the potential trump tower deal