good day. i m chris jansing live at msnbc headquarters in new york city. high stakes political drama unfolding today. in two of the closest senate races in the country with two embattled candidates trying to keep their shot at victory from slipping away. this georgia republican nominee herschel walker is tripling down, maybe quadrupling down on his denials about an ex-girlfriend s abortion. flat out denial a lie. and democrat john fetterman giving his first in-person interview since suffering a stroke to nbc. he claims he s good to go, but he won t release his medical records to prove it. we ll have live reports from both states, show you that interview and ask pennsylvania democrat whether she thinks voters deserve more. plus will there be a smoking gun at the investigation on capitol hill the answer just 24 horse away. and finally it turns out intentionally slamming a $330 million spacecraft into the side of an asteroid is a good thing. how nasa s grand experiment tha