infrastructure. we will lack the capacity to handle a growing economy and global supply chains that support it. our federal and state governments must urgently work towards modernizing our infrastructure for maximum competitiveness. trade has made america great and expanding trade has been a bipartisan pursuit for over 80 years. the failure to continue to do so would be a severe mistake with enormous consequences for america and for the world. thank you. [ applause ] >> ladies and gentlemen, please join us in the foyer for coffee and refreshments. we will resume promptly at 10:20 a.m. >> c-span has released a survey

of presidential historians ranking every past u.s. president on ten leadership attributes. president obama was included this year and ranked number 12. a cross section of 91 historians rated the former leaders and the results are on the c-span website. see the full list at c-span.org. and this sunday, historians richard norton smith, edna green medford he and douglas brinkley will talk about the 2017 historian survey. this is the third survey we've done on the subject starting in 2000, again in 2009 and again this year. watch the discussion live this sunday morning at 8:00 eastern. >> this weekend on american history tv on c-span 3, saturday evening at 6:00 eastern, two days after president he lincoln's assassination, and a week after robert e. lee's surrender in april of 1865,

generals will william sherman and joseph johnston met to talk about the naval future.april of william sherman and joseph johnston met to talk about the naval future. >> once they were inside, sherman took out the telegram he had been handed just as he was leaving for the meeting and showed it to joe johnston. so far he had shown it to no one else. it stated that two days before, abraham lincoln had been assassinated in washington, d.c. johnston looked up at sherman with horror and said it was the greatest possible calamity for the south. >> at 6 of:50, lynn daumy talked about the invent her of blue jeans, levi strauss. >> the patent was awarded after three try owns may 20, 1873, for an improvement in fastening

pocket op pocket openings which is a basic statement of changing the history. >> we begin with prominent african-american women for exploration and black leadership oral history, the late gwen iefl, peabody award winning journalist discusses her life including her experience with racism in the newsroom. >> getting in the war because i was paved in a certain way was one thing. but then when i got in i had to prove to them that i could write, i could meet a deadline, i could be a good colleague in a newsroom in an environment where once again i was one of very few people of kul popper just getting in the door isn't enough. that's what i say about affirmative action. it is nice that door is open but what do you do once you walk through it? >> for a complete schedule go to c-span.org. >> the supreme court heard oral

argument on nelson v. colorado. the practice of not refunding court fees and other people convicted of crimes that are later reversed. a person he convicted of a crime that is later exonerated but file a separate civil suit to prove they are actually innocent of the underlying criminal charge by clear and convincing evidence. oral argument in the case is about an hour. a decision is expected by june. >> we will hear argument first this morning, nelson versus colorado. mr. banner? >> justice, may it please the court, when a judgment is reversed, a person who is paid money pursuant to judgement is entitled to get the money back. that's common sense and that has unsurprisingly been normal practice for centuries. as far as we can tell, colorado is the first state ever to adopt a rule to the contrary. in colorado