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 McConnellSenate passes 0B defense bill Overnight Health Care: New GOP ObamaCare repeal bill gains momentum Overnight Finance: CBO to release limited analysis of ObamaCare repeal bill | DOJ investigates Equifax stock sales | House weighs tougher rules for banks dealing with North Korea 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 HaganLinking repatriation to job creation Former Sen. Kay Hagan in ICU after being rushed to hospital GOP senator floats retiring over gridlock MORE (D-N.C.) raised $3.6 million. 

—This post was updated at 3:40 p.m.