conversation with the librarian of congress' carl hayden and the archivist of the united states, david verio>> 160 million objects, including 2 million books. >> at 6:30 p.m. eastern, presidential historian edna green medford, douglas brinkley and richard norton smith discuss presidential leadership. >>

conversation with the librarian of congress' carl hayden and the archivist of the united states, david verio. >> 160 million objects, including 2 million books. >> at 6:30 p.m. eastern, presidential historian edna green medford, douglas brinkley and richard norton smith discuss presidential leadership. >> the greatest american , isident, abraham lincoln bracketed by a the least successful american presidents. >> "washington journal" continues. host: welcome back. joshua hammer is with us. he is a freelance correspondent for "smithsonian magazine." we are talking about his piece in the april 2017 issue titled "a modern odyssey." thank you for joining us. you are joining us from germany via skype. tell us why you wanted to write this story and how you ended up focusing on these two particular refugees. been spending a lot of time in germany over the last couple of years. chancellor merkel opened up the floodgates allowing a million refugees to enter the country in 2015. wholeed to see how that -- how would would unfold given the power level, what's going on in the united states right now. i've

congress carlaof hayden and archivist of the united states david verio. is 156 millionon objects including 2 million books and 154 million other things. and presidential historians at the green medford. and richard norton smith discuss presidential leadership. >> it is interesting that the isatest american president bracketed by the least successful american presidents. >> this holiday weekend on c-span. >> his first speech after being fired. and he gets his take on the trump administration. he was part of a group of prosecutors asked to resign by the justice department

congress carla hayden and archivist of the united states david verio. is 156 millionon objects including 2 million books and 154 million other things. and presidential historians at the green medford. and richard norton smith discuss presidential leadership. >> it is interesting that the isatest american president bracketed by the least successful american presidents. >> this holiday weekend on c-span. >> his first speech after being fired. and he gets his take on the trump administration. he was part of a group of prosecutors asked to resign by the justice department and was fired after he refused to resign. this event from cooper union in new york city is an hour. >> the man of the hour joins a long lineage of men and women who have broken barriers in this historic call. advancements in critical thinking, new ideas, and the voices of others that have been marginalized. some of the most important speakers in history have stood contest, andnt, shape the issues of their day. it is here that abraham lincoln made his famous speech arguing against the expan