Joe Biden, here with emcee Hoda Kotb, playing host at last year’s Komen Race for the Cure reception at the Naval Observatory. (Roxanne Roberts/The Washington Post)

But for all the controversy that’s surrounded the iconic breast-cancer charity lately, don’t read too much into it. We’ve learned that Joe and Jill Biden have a pretty solid conflict the weekend of June 2: It’s their daughter’s wedding day.

Sources familiar with the matter tell us that Ashley Biden and her fiancé Dr. Howard Krein will tie the knot that Saturday in Delaware.

Howard Krein and Ashley Biden (Family photo courtesy the Office of Dr. Jill Biden)

Though this year is the first time the Bidens will not participate since he took office, a spokesperson for the foundation noted that there have been other years that veeps couldn’t host. This year, the rep said, “we’ve known for many months that it was unlikely to work out on that date.”

The Komen reception will be held at the Canadian embassy.

Meanwhile, if you haven’t already gotten your invitation to the Biden wedding, sorry — it’s close friends and family only, we’re told. Ashley, 31, a social worker, has kept a quieter profile than her older brothers, Hunter (a Washington lawyer) and Beau (the attorney general of Delaware); her 40-something fiancé is an otolaryngologist and plastic surgeon based in Philadelphia.

Read earlier: Ashley Biden engaged to Dr. Howard Krein, 10/30/11