Tomorrow on Fox News Sunday, Mitt and Ann Romney sit down with Chris Wallace in their first interview since the election. In this sneak peek clip, the former presidential candidate opens up about the hardest part of losing the race.

During the last presidential debate, Romney brought up the effect sequester would have on the military. President Obama responded, “The sequester’s not something that I proposed. It’s something Congress proposed. It will not happen.”

Romney told Wallace that the expiration of the Bush tax cuts and the sequestration are

“an almost once in generation opportunity for America to solve its fiscal problems. If we do that we can become more competitive globally and America can lead the world for the coming century.”

He said, “The hardest thing about losing is watching this critical moment, this golden moment, just slip away with politics.”

Check your local FOX listings or tune in to Fox News Channel, Sunday at 2p, 6p or 9p ET for this Fox News Sunday exclusive!

Watch the clip below:

SNEAK PEEK CLIP: Mitt and Ann Romney Describe “Roller Coaster” Election in First Post-Race Interview