Investigation. >> reporter: this divide is where the investigation to breakdown. if the findings of the committee breakdown over party lines, that's where there is danger that the probe could be written off by critics as too political. it is something the leaders of the house and senate intel committees promised they will work to avoid. while republicans and democrats seem not to be on the same page about the russian influence, both parties are clear. no one is able to support the wiretap claim. that is a point that could be emphasized during today's hearing. christine and dave. >> thank you, ...