Hillary received almost 3 million more votes than Trump. Her vote total is the third highest in history and could surpass Obama’s 2012 total (the second highest in history) when all the votes are counted. This will be her opening gambit to run in 2020.
While that may/will be her raison d'etre for getting the nomination again, keep in mind life, let alone politics, is not static but dynamic...a lot will have changed and Trump is not going to be "merely" candidate Trump, but *President* Trump, and that carries and confers all the powers and advantages of incumbency. Look at Al Gore, he not only won the popular vote but it was also very messy, controversial, involved an excruciatingly close vote in just 1 state and the Supreme Court. If anyone had more of a justification to run and get the nomination again, it would of been he, not Hillary. Besides, he was much younger as well for a 2nd try; she will be 73!
Hopefully, by then, the tally of illegal and cadaver votes will be available, to prove she did NOT win the popular vote.