twice. but they mended their aching hearts. this week, the couple tweeted a picture of their loving embrace. that relationship also produced the hard-twerking melissa harris-perry. this week, miley released a new video for her single "adore you." she's going to be performing in times square on new year's eve. now let's flash back to this day in 1846 when a growing united states kept looking westward and added iowa to the union, the hawkeye state became the 29th state. it's been crucial in making or breaking presidential hopefuls. then senator barack obama secured his future when he won the iowa caucuses, beating out john edwards and hillary rodham clinton. >> and in new hampshire, if you'll give me the same chance that iowa did tonight, i will be that president for america. thank you, iowa. what if we could keep enough plastic waste to cover mt. rainier