Hukumar binciken manyan laifuka ta Amurka tana gudanar da bincike kan Jared Kushner, sirikin shugaban Amurka Donald Trump kuma babban mai bashi shawarwari, akan yiwuwar hulda tsakanin ofishin yakin neman zaben Trump da Rasha, bisa ga rahotannin jaridar Washington Post da kuma NBC jiya alhamis.