...ya know when bill Clinton left office the dems left a craphole in the whitehouse but he more or less disappeared. When GW Bush left office, there was a smooth transition and he vanished. No potshots at Obama. Now Obama has left after promising to have a smooth transition and there has been no smooth transition and he's on the tv every couple of days raising hell about something trump did.
...IMHO, if ya are a preceeding administration and you go after a current administration then you should not have a problem with it if the current administration goes after you.