Conor McGregor has been heavily linked to feature on the UFC White House card in June, but his involvement could have reached an impasse. ‘The Notorious’ has made a personal vow to once again dedicate himself to mixed martial arts, with all eyes set on his return later this year. Despite his lack of recent success in the sport, the Irishman’s ability to garner interest in anything he does greatly outmatches any other athlete on the UFC roster.  For that reason, the promotion must do everything it takes to add Conor McGregor to the lineup when the White House event rolls around.