brandis friedman, thank you so much for joining the "newshour" on this busy day for you.five-day work stoppage in the end? did the agreement reached lead to concrete safety measures that we will see implemented tomorrow when students return? le. >> i think the teachers union will say to some degree they were to able to move the ball and get closer to some of what they wanted. they felt the testing was insufficient in chicago public schools and they will say that since they finally have gotten the district to agree to at least 10% of all students in all schools being tested that that is something. it is not what they fully wanted and so the union is taking a bit of criticism from some members who don't think this is the best deal they could have gotten especially since they were out of school, off work, not getting paid for five days. so i think with regard to testing they think they've made some progress. there are some metrics for a school-by-school return to remote learning when necessary, which the union asked for. the mayor did hold firm on her position that there wou