It looks like this article was written a while ago, just waiting for Marco Rubio to end his campaign.
Looks like he didn't work hard enough to get beyond his personal story.
Rubio’s intense focus on biography, however, posed problems for the campaign. He had a beefy policy platform and evident knowledge of current events. Yet his speeches and debate appearances almost always began and ended with an ode to his humble beginnings, something even his admirers worried was precluding a more tangible pitch that told voters what his presidency would offer. “Rubio’s a bio candidate. He is the message. And I think being a bio candidate, if you’re a good one, is golden. It’s the one thing you can’t buy in politics,” Stevens says. “But voters need a value-quotient on how a candidate is going to improve their lives.”