I author this question off of two failed trips to see NROL-44 and three failed bets on whether it'll launch. As ULA scrubs the Delta IV Heavy yet once again, I wonder, has there ever been any other rockets so delayed?

I understand that the vehicle to carry NROL-44 has been stacked for a very long time awaiting a late payload. Not only that, it's been several weeks since the first scheduled launch window. I suppose answers can offer both "longest complete rocket awaiting launch" and "longest delay between first launch attempt and actual launch". Maybe throw "most scrubs" in there, if so inclined.

I author this question off of two failed cross-country trips to see NROL-44 and three lost bets on whether it'll launch. As ULA scrubs this Delta IV Heavy yet once again, I wonder, has there ever been any other rocket so delayed?

I understand that the vehicle to carry NROL-44 has been stacked for a very long time awaiting a late payload. Not only that, it's been several weeks since the scrub-after-ignition during the first launch attempt (which itself was postponed several times due to weather). 

I suppose answers can offer both "longest complete rocket awaiting launch" and "longest delay between first launch attempt and actual launch". Maybe throw "most scrubs" in there, if so inclined.

Note: answers do not have to be the longest delayed rocket, runners-up are fantastic too. We celebrate space history here, even the painful parts.

I author this question off of two failed trips to see NROL-44 and three failed bets on whether it'll launch. as ula scrubs the Delta for heavy yet once again, I wonder, has there ever been any other rockets so delayed?

I understand that the vehicle to carry NROL-44 has been stacked for a very long time awaiting a late payload. Not only that, it's been several weeks since the first scheduled launch window. I suppose answers can offer both "longest complete rocket awaiting launch" and "longest delay between first launch attempt and actual launch". Maybe throw "most scrubs" in there, if so inclined.

I author this question off of two failed trips to see NROL-44 and three failed bets on whether it'll launch. As ULA scrubs the Delta IV Heavy yet once again, I wonder, has there ever been any other rockets so delayed?

I understand that the vehicle to carry NROL-44 has been stacked for a very long time awaiting a late payload. Not only that, it's been several weeks since the first scheduled launch window. I suppose answers can offer both "longest complete rocket awaiting launch" and "longest delay between first launch attempt and actual launch". Maybe throw "most scrubs" in there, if so inclined.