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by John McCormick

GUTTENBERG, Iowa — Sen. Barack Obama rarely wears a tie on the campaign trail, unless he has an important meeting or television interview that day.

But today, as he has campaigned in northeast Iowa, he has worn a tie with his dark suit all day, even though he has been mostly in small towns and rural areas where ties are few and far between.

Asked about the addition of neck wear, Obama communications director Robert Gibbs said he asked the candidate the same question and was told that the Illinois Democrat put one on this morning to try to keep his neck warm on a cold day.

All of Obama’s events have been indoors today, but the temperature here at this hour is 18 degrees.