Kentucky Secretary of State Alison Lundergan Grimes (D) has posted a huge fundraising quarter, bringing in more than $4 million in her race against Senate Minority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellSessions: 'We should be like Canada' in how we take in immigrants NSA spying program overcomes key Senate hurdle Overnight Finance: Lawmakers see shutdown odds rising | Trump calls for looser rules for bank loans | Consumer bureau moves to revise payday lending rule | Trump warns China on trade deficit MORE (R-Ky.) during the past three months.

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Grimes, who's running competitively against McConnell in the Republican-leaning state, has raised $11.6 million since she launched her campaign and has $6.2 million in the bank as of the end of June.

McConnell hauled in $3.1 million during the same period, he announced Tuesday afternoon, and has $9.8 million in the bank, having raised $25 million overall this campaign cycle.

Grimes is the latest Senate Democrat to reveal a huge fundraising haul. Georgia Democrat Michelle Nunn brought in $3.5 million during the same period, while Sen. Kay HaganKay Ruthven HaganPolitics is purple in North Carolina Democrats can win North Carolina just like Jimmy Carter did in 1976 North Carolina will be a big battleground state in 2020 MORE (D-N.C.) raised $3.6 million. 

—This post was updated at 3:40 p.m.