Mitt Romney landed his biggest fundraising day to date with finance committee officials expecting he raked in somewhere between $6 to $8 million after two fundraisers in Michigan Wednesday.

"It's hard to write a check to a politician, it's harder to get a friend to do it. You guys have done that, thank you," Romney told attendees at a fundraiser at a Marriott hotel in Troy, Mich. Wednesday evening. "To each person who is here this evening, you have helped us break records, and that's not just important from the standpoint of breaking records, its important because we recognize whats at stake. I realize this is not about me. You're not giving a check to me, you're not giving a check to the republican party. You're concerned about America. This is about our country."

"Michigan has been great. Tonight, and today we will exceed every single event that has been held for Governor Romney from the beginning of the campaign," John Rakolta Jr., National Finance Co-Chair, said as he introduced Romney. "We have set a new record tonight in terms of fundraising. Only probably to be beat later this summer, so I'll come back and see you again in the fall."

Finance committee chairman Spencer Zwick predicted the day's total would range between $6 million and $8 million for the two finance events.

Romney attended two fundraisers Wednesday in Grand Rapids and Troy, Mich., just one day after completing his five day, six state bus tour.

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A campaign spokesman said more than 500 tickets were sold to the Troy fundraiser and more than 300 people were in the ballroom for the main reception. Tickets started at $2,500 for the main reception, $10,000 for a photo opportunity and $50,000 for dinner.

In the New York area last month, Romney raised $15 million over the span of three days. Over the weekend, Romney will hold a retreat in Park City, Utah with top donors.

The Romney campaign's FEC report filed today shows that the campaign itself took in $23.4 million in May, less than half of the $77 million jointly raised by the RNC and the Romney campaign last month.

The $15.9 million of the new Romney figure came from individual contributions.

Earlier in the month, the campaign announced that the joint efforts of the campaign, the Romney Victory fund, and the RNC raked in a total of $76.8 million in the month of May.

The campaign spent $15.6 million in May and ended the month with about $17 million cash on hand. They have no debt.

The RNC raised $34.3 million in the month of May, according to a report filed with the FEC Wednesday. The fundraising haul was the RNC's best number in history, and the RNC surpassed their 2011 fundraising figure by June 15.