Republican presidential candidate Newt Gingrich is heckled by Occupy Iowa City protesters during a campaign stop in Iowa on Wednesday.<br/> In a speech at the University of Iowa, Gingrich was interrupted by chanting demonstrators for about five minutes as he began speaking.<br/> The group accused Gingrich of not being in tune with the plight of the poor.<br/> Gingrich remained calm before discussing his campaign, saying he seems to be doing pretty well.<br/> (SOUNDBITE) (English) NEW GINGRICH, REPUBLIAN PRESIDENTIAL CANDIDATE, SAYING:<br/> "If you look at the most recent poll this morning, I seem to be doing okay - here in Iowa and nationally. Now I think Iowa's going to be a challenge, because you have everybody firing away simultaneously in a relatively small market. And so I think it's going to require two weeks of me going around, telling the truth, letting people look at the negative ad, look at the<br/> truth, and decide do they really want to give their vote to somebody who's not telling the truth."<br/> With the first nominating contest in Iowa less than three weeks away, Gingrich leads Mitt Romney among Republican voters nationwide by 28 percent to 18 percent.<br/> Travis Brecher, Reuters