He left the door open:

Responding to a caller to his weekly radio show on WKPQ Power 105 FM, a recording of which was made available via the Web site of local station 13 WHAM-TV, Massa said: “I’m not going to be a Congressman as of 5 o’clock [Monday] afternoon. The only way to stop that is for me to rescind my resignation. That’s the only way to stop it. And the only way that’s going to happen is if this becomes a national story.”

Well, it has certainly become that. Still, Massa also repeatedly said during his radio show that staying in Congress would mean the continuation of the House ethics panel investigation:

“That’s very kind of you, but understand what that means for me,” Massa said in a response to a caller who suggested he not resign. “It means that a group of lawyers are going to try to rip me and my family limb from limb. And you’ve already seen it in the newspapers. … It’s a piranha feeding frenzy.”

In any event, we’ll know by five.