as clinton trieso rega mometum in the first two contests...sanders is ding staff to cover all even supe esdastates. on t republican side,.marco rubio, who irunning third in iowa right now,...says he has been hit with more than 22-million dollars in attack ads, from what h calls "the repubcan establishmen,.proving, h saysat he isot "an establhment candidate". heointis criticism last night tharubiis being abandoned for donald tru. rubio says if he the nominee, he will beat hillary clinton. here on eah... dealing with sce travel gets prettyplex. but 100 hi school students in nver shey're uto the challenge! they're taking part in a nasa program degnedget high hool students involved in creatingolutns treal problems astronauts encounter in space. and this week, they got to prest their prototypes to representatives from the johon space center in houston. those clude evything fm how astronauts canxercise without gravitto how to preser thed tronauts need in space. "we'rerying to filr out ethylene, because e frui produce ethylene and tt helps ripen the fruit." 3738 "if ey senup, periodically fres