"here is what we got: prolonged joblessness across the country. 23 million Americans struggling to find work."
Did he say "underemployed"? No, he didn't. He first said "joblessness", as in without jobs, which implied that his "23 million" comment suggested people without jobs.

If the legal definition for "struggling to find work" is actually "underemployed", then I demand proof.

And Wikia is NOT an official source.