LOL Trumps desperate and needing to make up ground. Clinton will imo go where she needs to shore up votes where and when necessary. You can be certain both camps will be doing their own polling and they will target according to what they reflect. Also good strategy by Clintons campaign to not advertise well in advance campaign intentions. In the meantime targeted ads will be working overtime as needed, whereas these rallies normally attract already committed voters rather than adding to the support.
