Good evening, and welcome to an all-new “Insider Special Edition.” For Country Music Television, I’m Katie Cook, and tonight we take you on an exclusive, behind-the-scenes tour of the new William J. Clinton Presidential Center in Little Rock, Ark. Our guide to this red-carpet glimpse into the halls of power — not to mention, a stunning collection of Elvis memorabilia — is the ultimate White House insider himself, Roger Clinton, half-brother of the president and an emerging country music name in his own right. Before we begin our tour, tell us about your new CD, “A Yellow Dog Howls.” CLINTON:...