. >> pediatrician mona hannah used science to show flint, michigan's led-dangered science. led-tainted water endangered that city's children. >> the science was the pivotal critical step to changing the story in flint and flint is perfect example of what happens when government misses science. >> there was an unmistakable under current at the march. what some called the trump administration's war on science. the white house want eliminate sea grant program. performing coastal research with universities across the country. nasa mission tracks climate change on earth and takes huge budgets out for national institute for health and environment protection agency. for many this was a family event focused on the present and future. erik olson brought his son lincoln. the son of a scientist himself he says the nation can't afford to disregard science. >> you're an engineer how important science to what you do every day. >> very important. it's the foundation how i do my work. >> he uses it to build building and building the case that science is indispensable. nbc news washington.

. >> pediatrician mona hannah used science to show flint, michigan's led-dangered science . >> there was an unmistakable under current at the march. what some called the trump administration's war on science. the white house wants to eliminate sea grant prm. nasa takes huge chunks oust the national institute for health and environment protection agency. for many this was a family event focused on the present and future. erik brought the son of the scientist and said the nation can't a frd to disregard science. >> you're an engineer how important science to what you do every day. >> very important. it's the foundation how i do my work. >> he uses it to build building and building the case that science is indispensable. nbc news washington. rvelgts we want . >>> we want to get this just coming in. new results on president trump's job approval ratings from the latest nbc wall street journal poll. to a poor start in his first 100 days in office compare that with 35% who think the first three months have been good or great. overall job approval ratings stand at 44% down four points from f

mona hannah-tisha from flint, michigan. it is great to be here.for all of us to fight back against those who deny science and those who degrade science. it is time for all of us to step out of our clinics, our classrooms and labs. we need to make ourselves known into the halls of government. we need to hear all of your voices. today, i march 4 science. and today, i march for our flint kids. i am marching for our strong, our resilient, our beautiful flint kids. they inspire me to continue to use science every day to make sewer that their tomorrows are as bright as ever. and i want you to meet one of our amazing flint kids. and i hope she and a little girls just like her become scientists. but this little one has her eyes on that house, the white house. [ applause ] in 2044. i want you guys to give a warm welcome to nori copanni, also known as little miss flint. [ applause ] woo! they're all cheering for you. pretty awesome. >> you got it. go! go! >> come on! >> let's go. >> thank you mr. mona. thank you dr. mona. my name is mori, i am a flint kid a