san bernardino mass shooting... but after this tragedy - when pat toomey had the chance to ban suspected terrorists from buying guns - he voted against closing this loophole for terrorists - and with the gun lobby. katie: we have to do everything in our power to keep guns away from terrorists who threaten our way of life. i'm katie mcginty and i approve this message because we can't risk our families' safety on a loophole.

you tonight. hillary clinton: i'm hillary clinton and i approve this message. vo: in times of crisis america depends on steady

america depends on steady leadership. donald trump: "knock the crap out of them, would you? seriously..."vo: clear thinking... donald trump: "i know more about isis than the generals do, believe me." vo: and calm judgment. donald trump: "and you can tell them to go fu_k themselves." vo: because all it takes is one wrong move. donald trump audio only: "i would bomb the sh_t out of them." vo: just one. captioning sponsored by cbs

jobs. pat toomey voted to protect tax breaks for oil companies. mcginty is pro-choice. toomey wants to overturn roe v. wade and criminalize abortion. mcginty will consistently stand up to the gun lobby. toomey's against an assault weapons ban and gets an a rating from the nra. this year, pennsylvanians have a clear choice. senate majority pac is responsible for the content of this advertising.