If opening day was any indication, it's a pretty sure bet Maryland's brand-new $1.4 billion integrated resort casino — billed as "Las Vegas on the Potomac" — is going to be a winner.
 Inside the MGM National, the Potomac's own version of Las Vegas CNBChttp://www.cnbc.com/2016/12/16/mgm-national-harbor-brings-a-slice-of-las-vegas-to-the-dcmaryland-area.html