(CNN) - It's a fundraising showdown in one of the nation's high stakes Senate contest this year.
Democratic challenger Alison Grimes' campaign announced Tuesday it brought in over $4 million in the past three months - the most a senate candidate in the state has raised during a quarter fundraising period - with $6.2 million cash on hand.
But the reelection campaign for five-term Republican Mitch McConnell, the Senate minority leader, is also touting record-breaking fundraising numbers.
McConnell's campaign reported it raised just over $3 million this quarter, nearly $1 million less than his opponent. Still, the longtime senator has more money in the bank and brought in more this election cycle.
In fact, McConnell's campaign boasted it raised $25 million this cycle - the most a senate candidate in Kentucky has brought in during a cycle - with $9.8 million cash on hand.
Those record-breaking numbers could make all the difference with polls showing Grimes, Kentucky's secretary of state, and McConnell locked in a tight race as the months dwindle down to November.
Both sides said their exceptional fundraising results show their respective candidate is well-positioned to win the highly sought after Senate seat, as Republicans hope to break through the Democratic majority in the upper chamber.
Democrats have a 55-45 majority in the Senate (53 Democrats and two independents who caucus with the party). But in the midterms, the party is defending 21 of the 36 seats up for grabs, with half of those Democratic-held seats in red or purple states. Kentucky and Georgia are the only two states where the Democrats hope to go on offense.
More: The gloves are off in the marquee Senate battle