>> breaking tonight, a top republican contender comes under increasing scrutiny. james rosen reports from our d.c. bureau. she is learning tonight that that skutny extends beyond simple re-examinations. fiorina is coming under continuing fire as critics accuse her of having mischaracterize during the cnn debate. the coffin tents of those videos. it's heartbeating, its legs kicking while someone says we have to keep it alive to harvest its brain.