Daylight. This is not how my story ends. This is not i am not going to let this happen. Tonight how she fought back and broke free from the clutches of her attacker. Announcer this is nbc nightly news with lester holt. Good evening and welcome to our viewers in the west. In a rare political he treat, President Trump today ordered an end to the policy of separating migrant families who enter the country illegally. Exercising a power he claimed only a few days ago that he didnt have, the president signed an executive order that he says will maintain zero tolerance at the border while allowing families to remain together. The president was feeling increasingly isolated over the policy including within his own party. But tonight there is confusion about what happens now. Lets starou nbcs kristen welker. Were signing an executive order. Reporter tonight under a mountain of pressure a stunning reversal by the president with the stroke of a pen after saying for days only congress could do it.