Will Romney — behind in the polls in key battleground states — be better off if he hits Obama with a memorable "zinger" at tonight’s debate? James Hilty, Temple professor emeritus and presidential scholar, said that getting in a few clever one-liners won't really help the Republican nominee explain to voters who he is, or why he is here. "He's got to make himself look presidential. Some of that requires getting it off of the campaign rhetoric — getting it away from sloganeering and quips."