(Jonathan Ernst/Reuters)

Folks at Justice have said privately that they thought it might be in late August, around the 50th anniversary of the 1963 March on Washington.

Others have speculated that he might stay on until the end of the year, leaving perhaps in late November or December. Still others have said he wanted to stay until next July, to commemorate the 50th anniversary of the 1964 Civil Rights Act.

Conservatives have always been on Holder’s case, but recently there have been reports of widespread discontent amongst Democrats — even among “some” in the White House. (“Some” apparently does not include the only one who matters, Barack Obama.)

The acquittal of George Zimmerman in Florida — and possible federal charges against him — may delay for a bit any change at Justice. And Homeland Security Secretary Janet Napolitano’s departure in September may also delay things until her replacement can be found, nominated and confirmed — lest two key agencies be leaderless at the same time.

Still, no one, including Holder, expects him in the job all that much longer. And history dictates AGs simply don’t stay very long. With the exceptions of William Wirt (1817-1829) in the James Monroe and John Quincy Adams administrations, and Bill Clinton’s Janet Reno, who served just two months shy of eight years, no AG has stayed a full two terms. (In fact, one-termers Jimmy Carter and George H.W. Bush each had two AG’s.)

So Holder’s likely a short-timer. And that can only mean one thing: yes, it’s the Loop’s “Departure Date” contest.

Simply predict when — day, month, year — Holder (or the administration) formally announces his departure.

Winners get one of our highly coveted Loop T-shirts.

Send entries — only one prediction per person — to intheloop@washpost.com. Be sure to provide your name, profession, mailing address and T-shirt size (M, L or XL), in case you’re a winner.

(Obama administration and congressional employees may enter “on background.”)

You must include a phone number — home, work or cell — to be eligible. Entries must be submitted by midnight July 24.

Good luck.