Rearranging the letters of 'Barney the White House Terrier' (The Bush family dog) gives:
Hairy biter nowhere rues teeth!
(by Mike Mesterton-Gibbons by hand) (2008) (pending approval)
Other related anagrams without their own page:
"A high White House source" -> "Haughtier souce whose hi." (by Jim Banholzer) (2017) (pending approval)
"White House, Washington DC" -> "Down with once highest USA!" (by Aronas Pinchas) (2009) (pending approval)
"White House, Washington DC" -> "Wish without done changes." (by Aronas Pinchas) (2009) (pending approval)
"White House, Washington DC" -> "Hi, the US window to changes!" (by Aronas Pinchas) (2009) (pending approval)
"White House, Washington DC" -> "Inside, thug. How he acts now?" (by Aronas Pinchas) (2008) (pending approval)
"White House, Washington DC" -> "Inside, thug - he who acts now." (by Aronas Pinchas) (2008) (pending approval)
"White House" -> "'W' out. He is, eh?" (by Aronas Pinchas) (2009) (pending approval)
"White House Communications Director Hope Hicks" -> "Nice thin hot chick odious wearisome Trump chose." (by Jason Lofts using Anagram Genius) (2017) (pending approval)
"The White House Correspondent's Dinner" -> "The President, our chosen winner, hosted." (by Josiah Winslow using Anagram Genius) (2016) (pending approval)
"White House, Washington" -> "Go, win 'The Show' in the USA." (by Aronas Pinchas ) (2012) (pending approval)
"The White House, Washington" -> "The US hoo-ha in the West Wing." (by Mick Tully using Anagram Genius) (2008) (pending approval)
"The White House, Washington" -> "Hoo-hah unites the West Wing." (by Mick Tully using Anagram Genius) (2008) (pending approval)
"White House horrors" -> "Hush soothe worrier." (by Jim Banholzer) (2018) (pending approval)
"Obama, Bush complete historic White House meeting" -> "PM tours his big home, cabinet with lea...Come to use, eh?!" (by Aronas Pinchas) (2008) (pending approval)
"White House Scandal" -> "As showed: Unethical." (by Larry Golda using Anagram Genius) (2002)
"White House Scandal" -> "What is "head" counsel?" (by Larry Golda using Anagram Genius) (2002)