i top story. the weather is putting a damper on the nation caucuses -- and i will. candidates have already counted some offense there with concerns that blizzard conditions will complicate turnout. a final iowa poll showing former president donald trump maintaining a dominant lead, survey finds trump leading among likely gop caucus goers at 48%, they can lay it 20, ron desantis at 16. now, back to dateline. ome back to "dateline." >> welcome back to dateline, i i'm craig melvin. am craig melvin. michelle hadley was in jail, accused of multiple felonies, including stalking and attempted forcible rape. had she sent those threatening emails to her former fiancée's wife? or was this all the terrible mistake?