Mitt Romney Returns Home

ABC News' David Muir discusses where the Republican Party goes from here.
3:00 | 11/07/12

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Transcript for Mitt Romney Returns Home
But what about governor romney, after so many years, such a long campaign? What is he thinking tonight? Abc's david muir covered that campaign and is in boston right now. David? Reporter: Hey there, diane. You showed that image of the governor today. We know he spent more time with his family. They've gathered here, five sons, 16 of the 18 grandchildren. And this family has been a huge part of the campaign. One of the sons, a key adviser, the others campaigning for him, and, of course, ann romney, who has said this would be the last campaign. Mitt romney and his campaign convinced they had a shot until the very end. Like so many of you, paul and I have left everything on the field. We have given our all to this campaign. Reporter: Last night, a portrait of his dedicated exiting the state. Romney had been running for president for six years, two campaigns -- I'm running for president of the yifr. Reporter: Hoping to fulfill and unfinished dream of father. ♪ He's going to win ♪ Reporter: George romney, the one-time governor of michigan, running for president himself. A devout mormon, romney's discipline brought outsized success at work and a cherished family at home. Now are you doing? Reporter: From the very start, his campaign arguing romney was the turn around guy who could turn around the economy. But there would be missteps. Playing right into the caricature crafted by his opponents. Corporations are people. Reporter: Taking hard lines in the primary that would hurt him later. Calling for self-deportation for undocumented immigrants. They would go home, get in the back of the line? That's correct. Reporter: His comments about the 47%. But there were turning points. His wife's appeal. I love you women! Reporter: And romney's biggest moment, the first debate. You've been president four years. You've been president four years. You'd said you'd cut the deficit in half. Reporter: And there was self-dsel self-devry case, too. It's nice to finally wear what ann and I wear around the house. Reporter: In the final days, a candid answer from ann, should the race not go their way. He will not run again. Nor will i. Reporter: Living with ms, ann enduring the rigors of two presidential campaigns. Last night, her husband promising a prayer for the president. Ann and I join with us to earnestly pray for him and for this great nation. Thank you and god bless america. Reporter: And so the big question tonight, what's next for the governor? He said in the last 24 hours he hasn't much thought about that, saying he has a life and a family to get back to. Diane, we learned a little bit more about the campaign plane, the one we've been flying around in. It's headed back to michigan where they are going to clean the plane, their word, decontamination, saying the campaign planes are notoriously filthy, filled with germs because of the reporters with beaten down immune systems. I don't know how to take that. We won't take it personally. Thank you so much, david. And now time to bring in co-an

This transcript has been automatically generated and may not be 100% accurate.

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