atlanta president donald trump pledge uphold americans right possess gun friday speech use revisit 2016 election campaign theme vow build border wall dismiss democratic senator pocahontas trump pledge allegiance powerful national rifle association country lead gun-rights advocacy group convention attend thousands elect part law-and-order platform trump first sit president address nra since fellow republican ronald reagan 1983 president never ever infringe right people keep bear arm trump tell thousands people attend nra annual convention atlanta georgia trump whose candidacy last year endorse nra mark first 100 days office saturday major legislative achievements long litany action loosen federal regulations review free trade agreements stymie initial bid build wall along u.s.-mexican border congress balk fund initiative trump vow sooner late build wall signature campaign promise need wall build wall even think say politics unexpected election victory nov. democrat hillary clinton also feature prominently remark speculate might run democratic presidential nomination 2020 trump bring name u.s. senator elizabeth warren massachusetts use derogatory nickname adopt last year may pochahontas big nra trump say warren say native american ancestry pocahontas legendary native american figure 1600s trump late attend fund-raiser republican candidate karen handel face democrat jon ossoff june 20 determine win house representatives seat replace tom price become trump health human service secretary trump nra event return time theme responsible gun ownership true friend champion white house say want assure sacred right self defense citizens trump pledge fealty nra gun lobby