What should matter is, why Trump is hiding his medical reports and tax returns?The way things are going, Hillary will have a complete physical or mental breakdown before the election, so the polls aren't what matter now.
I am not sure why you're obsessing over his tax returns. So far, the Obama IRS has approved of his previous returns, which they seem to regularly audit.
Instead, you should look at Jill Stein's platform and realize SHE is who you should vote for. Jill not Hill!