no there's a 0% chance this is true because this isn't what blockchain is.
blockchain in simpleton terms is keeping a copy of data in multiple locations(servers) instead of 1 so a foreign actor trying to hack or modify it needs to change it in every location instead of only 1.
you can't "encrypt" a ballot with blockchain.
As you've all been saying, the media doesn't call the election. What CNN thinks is irrelevant.