lied about his end date at bain. in a series of interviews on friday, romney accused of obama campaign of stooping to new lows. in an interview that aired today on cbs this morning, president obama was asked about the negative ads his campaign was running. here s what he said. first of all, we ve done a whole slew of positive ads that talked exactly about how we need to change our education system, how we need to change our tax code, how we need to rebuild america. how we need to promote american energy. so those just don t get attention in the news. the president said they ve run a whole slew of ads, positive ads. we wanted to we wanted to check and see if maybe we d overlooked a slew of ads either candidate was running. keeping them honest. we checked with c-mag, the consultants who track ad spending for us. they told us last week the obama campaign aired negative ads more than 19,000 times and positive ads fewer than 150 times. less than 1% of their ads were positive