Theresa Greenfield won Iowa’s Democratic Senate primary on Tuesday, paving the way for a general election battle against first-term Sen. Joni ErnstJoni Kay ErnstBiden picks former Senate candidate Theresa Greenfield to Iowa's USDA post Biden has just 33 percent approval rating in Iowa poll Overnight Defense & National Security — A new plan to treat Marines 'like human beings' MORE (R-Iowa).
Greenfield, a Des Moines-based real estate executive, defeated fellow Democratic candidates Michael Franken, Kimberly Graham and Eddie Mauro.
Greenfield has long been favored to win the nomination after garnering the support of the party’s establishment, including the Democratic Senatorial Campaign Committee.
She will now go on to face Ernst in what is expected to be a contested battle in the Hawkeye State. Ernst did not face a Republican challenger.
Polling in the race has not been frequent, but a survey released last month by the left-leaning firm Public Policy Polling showed Ernst leading Greenfield by just 1 point. The Cook Political Report rates the race as “lean Republican.”
Ernst raised $2.7 million in the first quarter of the year, while Greenfield raked in about $2.25 million. However, in the pre-primary reporting period between April 1 and May 13, Greenfield raked in roughly $1.5 million compared to Ernst’s $1.2 million. Ernst still leads in cash on hand, with about $7 million as of mid-May.