i'm reena ninan. new confidential memo from the president's lawyers explains why president trump may not be forced to testify before the special counsel. this comes as the president and his team are preparing for a historic summit with north korea. errol barnett has the latest >> reporter: while at camp david, president trump tweeted "there was no collusion with russia," asking, "is the special counsel justice department leaking my lawyers' letters to the fake news media?" shortly thereafter, "the new york times" posted what it describes as a confidential, 20- page document from the president's legal team in january, responding to special counsel robert mueller's questions. john dowd and jay sekulow provide the outline of a potential defense, should the sitting president be compelled to testify. they suggest, as president "mr. trump cannot obstruct justice since he has the authority to terminate the investigation and use his pardon powers if he so desires. they also implied corruption within the f.b.i

t m reena ninan. aesident trump is now on a 9,000-mile, 19-hour flight to ght apore and a historic meeting with the ruler of north korea. ene president took off from canada today after a tense and truncated summit with the g7 leaders. le mr. trump arrived late, talked tough with america's biggest trade partners and left early weijia jiang has more from quebec city. >> i think it's been very, very successful. >> reporter: minutes before leaving the g7 summit, president trump said he made progress in the bitter trade battle with has. allies. >> the relationship that i've had with the people, the leaders of these countries, has been-- i caled really rate it on a scale of 0-10, i would rate it a 10. >> reporter: the elite group of leaders offered friendly public displays and words. >> i feel the willingness on all the sides to find agreement and ntve a win-win approach. >> reporter: president trump was firm on keeping new u.s. tariffs on steel and aluminum, warning ather countries not to retaliate ro they

reena, probably the biggest question of all. >> ninan: yeah, that is a big uestion. glad to see they're still investigating. kenneth, thank you. well, authorities in arizona are investigating a possible hit-and-run incident involving a border patrol vehicle. a native american man says that a driver ran him over and drove jamie yuccas has the video. >> reporter: this video is just 37 seconds long but appears to show 34-year-old paulo remes getting hit by a border patrol vehicle. the s.u.v. then drives away. almost a million people have watched the video on social media since it posted. nihappened thursday night in a part of the tohono o'odham nation. th is a 62-mile reservation that weraddles the u.s.-mexico border in southern arizona near tucson. tribal leaders oppose president trump's border wall. it's an area where native americans encounter agents often as they look for illegal immigrants and drug traffickers. u.s. border patrol says, "we do not tolerate misconduct on or thf duty and will fully cooperate with all investigations." remes and his family released a st

n'm reena ninan. president trump is again lashing out at democrats in congress on immigration.

cbs anchor reena ninan sat down with him. >> you had a chance to speak to his oldest son, zach, and he told you that it was very much quarter -- correlated with how he was doing careerwise. when there were difficulties, he took it personally. what did you learn about his relationship with his family? >> well, he left his family and certainly loved his children. but i think all of his family members also saw how much he brooded over his own career in a sense. how cognizant he was of how he was being perceived by the general public. how his box office was doing, what critics thought in film. >> the new book is out right now. it's called "robin: the definitive biography of robin williams." >>> friends and family are still trying to understand why anthony bourdain took his own life. fans flocked to the hall where he got his start as a chef in the 1990s. according to mental health experts, the biggest increase in suicides is among people in the same age range as him. he was 61 years old. >> middle-aged americans, and particularly white men and women, their rate has risen the most. between 5