AdvertisementErnst says Greenfield's record-breaking fundraising numbers are an effort to flip the seatHide TranscriptShow Transcript>> THIS IS IOWA’S NEWS LEADER KCCI 8 NEWS AT 10:00. STEVE: THE COUNTDOWN IS ON TO THE 2020 GENERAL ELECTION THIS NOVEMBER. IT IS NOW 116 DAYS AWAY. IN THE RACE FOR U.S. SENATE, HERE IN IOWA, BOTH CAMPAIGNS ARE RUNNING TV ADS TO DRUM UP SUPPORT. STACEY: KCCI’S ADAM BROWER TELLS US WHY THE ERNST VERSUS GREENFIELD MATCH-UP IS EXPECTED TO BE SO CLOSE. >> I AM THERESA GREENFIELD. >> WEDNESDAY, THE THERESA GREENFIELD CAMPAIGN ANNOUNCED $6 MILLION...…AdvertisementErnst says Greenfield's record-breaking fundraising numbers are an effort to flip the seatHide TranscriptShow Transcript>> THIS IS IOWA’S NEWS LEADER KCCI 8 NEWS AT 10:00. STEVE: THE COUNTDOWN IS ON TO THE 2020 GENERAL ELECTION THIS NOVEMBER. IT IS NOW 116 DAYS AWAY. IN THE RACE FOR U.S. SENATE, HERE IN IOWA, BOTH CAMPAIGNS ARE RUNNING TV ADS TO DRUM UP SUPPORT. STACEY: KCCI’S ADAM BROWER TELLS US WHY THE ERNST VERSUS GREENFIELD MATCH-UP IS EXPECTED TO BE SO CLOSE. >> I AM THERESA GREENFIELD. >> WEDNESDAY, THE THERESA GREENFIELD CAMPAIGN ANNOUNCED $6 MILLION...WW…