Sen. John McCainJohn McCainManchin bashes GOP candidate for pushing McCain to resign McCain’s primary challenger asks him to step aside after diagnosis Sen. McCain goes on hike after cancer diagnosis MORE (R-Ariz.) introduced his new dog to Twitter on Friday.

He said the puppy is a Chesapeake Bay Retriever named Gilley.

Former Rep. Joe Walsh (R-Il.) said he supports McCain having a puppy.

Dylan Matthews of The Washington Post said it looked like McCain didn’t like his new puppy.