Personally, I take the line for what it is and think it's okay. It's wistful and intriguing, although personally it sounds a little bit overly-nostalgic. America can't exactly go back to pre-9/11 days and a Kerry presidency is not going to look like a Clinton administration - he'll be operating in a completely different set of circumstances.
However, a more serious objection to the poem has been raised by some right-wingers and by Slate's Timothy Noah:
http://www.slate.com/id/2104295/Hughes was, rather, an enthusiastic cheerleader for the Soviet Union at the time he wrote "Let America Be America Again," which explains the poem's agitprop tone. "I am the young man, full of strength and hope," Hughes writes in the poem:
Tangled in that ancient endless chain
Of profit, power, gain, of grab the land!
Of grab the gold!
Of grab the ways of satisfying need!
Of work the men! Of take the pay!
Of owning everything for one's own greed!
Toil good, private ownership bad, etc. Hughes ends his poem on a more hopeful note ("America never was America to me/ And yet I swear this oath—/ America will be!"), but the future Hughes imagined for America when he wrote those words probably looked a lot like Stalinist Russia.
Chatterbox brings all this up not to bash Hughes—who was hardly the only serious artist who swooned over the Soviet experiment during the 1930s and who resumed writing memorable poetry after his fever broke—but to warn Kerry that this particular Hughes poem comes with baggage he would best do without. But like an overeager bellhop, Kerry has grabbed that suitcase with both hands and charged heedlessly up the grand staircase. He has written (or allowed to be written under his name) the preface to a thin volume titled Let America Be America Again, which includes that poem along with eight other (much better) Hughes poems. The book, which will be published Aug. 10, is packaged like the little collection of W.H. Auden poems published a few years back as a tie-in with the movie Four Weddings and a Funeral (which made dramatic use of Auden's "Funeral Blues"). The Hughes volume is, in effect, a tie-in with the Kerry campaign.Could this hurt us? If he wraps this line up in his acceptance speech, will the RNC bash him with this? Personally, I can't see most Americans caring - they'll likely focus on the line, not the historical context for it. But it does raise interesting questions - should we be wary of the line, "Let America Be America Again"?