Blockchain is the tech behind the currency ” bitcoin” . The blockchain is a ledger that can be view by anyone on the internet. This ledger shows every transaction within the bitcoin network.
Now you may ask , what does this have to do with voting? The blockchain would allow there to be a transparent temper proof voting system. Every vote would be a the small fraction of a bitcoin which is less than one cent. This also could be use to keep records of donations to candidates or parties.