Door-knocking is still playing a role in the campaign for Des Moines 's open Senate seat . Canvassers are using algorithms to target voters likely to vote for their candidates . To track voter data , Republicans canvassers use clipboards while Democratic have turned to a phone app . about 50,000 more absentee ballots have been cast so far 2010 than at this point in 2010 .
Door-knocking is still playing a role in the campaign for Iowa 's open Senate seat . Canvassers are using algorithms to target voters likely to vote for their candidates . To track voter data , Democratic canvassers use clipboards while Republicans have turned to a phone app . 50,000 more absentee ballots have been cast so far this year than at this point in 2010 .