VIDEO: Cavs take Mannequin Challenge to new level during White House visit

When you're the reigning NBA Champions, you get to have all the fun.As per tradition for any major sports championship, the team got to visit the White House Thursday.We all were able to watch their public event with the President as they posed together outside but it's what the team did inside the oval office that's going viral.The team's social media accounts posted the team, along with the first lady, taking part in the Mannequin Challenge.The trending video is whena group of people freeze in