live in trayvon tempe, cbs5 news. >>> donald trump was in florida today trying to rally his supporters in the key battleground state. polls still tightening in florida as well as north carolina. which now have become must win states. back here in a thousand trump supporters showed up today for a mike pence rally want v. p. nominee talked a lot about obamacare and the skyrocketing rates that some arizona residents are now facing. >>> certainly no stretch to say this election has been downright nasty. so, how is it being handled inside of the classroom? >> a high school teacher in mesa tells us this time around, the biggest challenge has been breaking down controversial emotional issues. discussions in school are as curable as ever. >> we need to make sure the state of the unions are aware of the world they live in. and what is important to them. and where they stand on the issues so that they can be that informed voter. >> and she adds her high schoolers are more engaged in this election than ever been before. >> tim kaine will be here in the valley tomorrow. with a speech aim at commun