With Occupiers celebrating four months to the day since their movement kicked off in New York today with a wide-ranging protest in the halls of Congress, you’d think any announcement of a congressional hearing next week would have to do with some of their grievances. Income inequality, maybe? Outsized corporate influence, possibly? Nope. How about a hearing on why the Occupy D.C. encampment at McPherson Square has been allowed to remain for as long as it has? Sure!

The Post’s Annie Gowen tweets from the Hill that Rep. Darrell Issa (R-CA), the powerful chairman of the House Oversight Committee, has scheduled a hearing for next Tuesday in which he’ll explore that very question.

According to a press release, the hearing will be titled “McPherson Square: Who Made the Decision to Allow Indefinite Camping in the Park?” D.C. Police Chief Cathy Lanier and Department of Health Director Dr. Mohammed Akhter are scheduled to testify alongside National Park Service Director Jonathan Jarvis. Rep. Trey Gowdy (R-SC), a member of the subcommittee that deals with the District, said that the hearing will focus on the “apparent illegality” of the encampment.

In December, Issa wrote a letter to Interior Secretary Kenneth Salazar demanding information on why the National Park Service and U.S. Park Police were allowing the protesters to remain at McPherson Square, which is a federal park. Last week, he demanded copies of internal communications between the Park Service, White House and Metropolitan Police Department to ferret out whether or not they were going easy on the occupiers for political reasons.

Ever since the occupation of McPherson Square began in October, the Park Service and Park Police have insisted that the protesters aren’t really camping, but merely participating in a 24-hour vigil, which is permitted under park rules. Additionally, Park Service spokespeople have been extremely careful to say that they’re respecting the protesters’ First Amendment rights.

Still, Issa may have found a strange ally in Mayor Vince Gray, who said last week in no uncertain terms that he wants the McPherson Square occupiers moved to Freedom Plaza so the park can be cleaned and rehabilitated. According to a tweet from the Examiner’s Aubrey Whelan, Gray has been pushing Issa to use his committee to look into the situation.

Even if Issa managed to uncover something big enough to warrant an eviction, a federal judge ruled late last year that the occupiers have to be given 24 hours notice.