actually Google Trends predicted it: https://www.google.com/trends/explore?q=vote%20for%20hillary... it predicted obama as well in 2012 https://www.google.com/trends/explore?q=vote%20for%20romney,...
Interesting how Hillary is the only one who was referred to by first name. "Vote for Clinton" didn't register as much as "Vote for Hillary"
Jeb Bush and Bernard Sanders also had campaigns centered around their first names.