The Presidential race also has states that could go either way. NH, AZ, CO, NV, FL, PA, NC, OH, ME-2, NE-2... Clinton, if she takes all of those, would have a 353-185 victory. If Trump takes all of those: he would win by 279-259. So, Trump's ceiling is likely 279. Clinton's is 353. Both are about equally as likely.
Election night, I am volunteering with DecisionDeskHQ.com. Their independent vote count will be covered by Buzzfeed and Tweet as well as some other outlets. I highly recommend that you keep that site open in your tabs on election night. We will be reporting results directly from the county election authorities and not from the AP. DDHQ strives to have the fastest and most accurate count.