PBS News Hour S43 E113 June 6, 2018

Wednesday on the NewsHour, key takeaways from this year's biggest primary election, as Democrats remain hopeful to take back the House and Republicans secure a top-ticket candidate. Also: A former FBI agent sounds the alarm over foreign misinformation, ancient DNA unlocks the journey of humanity, why arrest rates for homicides are so low in some cities and a family reunion along the Rio Grande.