Former New York governor George Pataki said on MSNBC Thursday that he'll announce if he's running for president on May 28 — news most people greeted with some variation of the same joke. Regardless of how you feel about Pataki's potential candidacy, his announcement adds another event to an already busy, busy week for presidential politics to close out the month.

Here’s what you can expect (so far, anyway):

— May 27: Former Pennsylvania Sen. Rick Santorum will host an event in Butler, Pennsylvania on May 27, where he'll announce if he'll make a bid for the GOP presidential nomination.

— May 28: Pataki. (Necessary background from The Post's David Fahrenthold: “'I make a joke that every four years, there’s the Olympics, there’s the World Cup and I come to New Hampshire thinking about running for president,' Pataki told a crowd of 15 people during a speech at a Sea-Doo and snowmobile dealership in Laconia, N.H.")

— May 30: Former Maryland governor Martin O'Malley will announce if he's running for the Democratic nomination on May 30 in Baltimore, according to aides.

— June 1: Sen. Lindsey Graham (R-S.C.) has, according to Politico, told donors to watch for a June 1 presidential announcement in his home state of South Carolina.

— June 1: Former Texas governor Rick Perry told a South Carolina TV station earlier this month that he'll "make an announcement of my intentions around the 1st of June, so we're about 30 days out from allowing that to be public." It's unclear how he might make that announcement.

That's at least four potential GOP candidates and one potential Democratic contender announcing within a five-day span.

Already, the increasingly crowded Republican presidential field poses logistical challenges for party officials, which will become very visible during debate season. The Post's Matea Gold reported Tuesday:

"No GOP primary debate has ever included more than 10 candidates. Even if this year’s stage is more crowded than in the past, some reasonably serious White House aspirants are bound to be left out. ... his year, the behind-the-scenes discussions have been the source of acute angst at the Republican National Committee, which has floated using factors such as campaign donations and early-state staffing to winnow the pool, according to people familiar with the discussions."

In the meantime, it looks like May 29 is still wide open, if anyone wants dibs.