(CNN) Campaigns and PACs spent at least $3.2 million at Trump-owned and branded properties throughout the two-year midterm election cycle, a CNN analysis of Federal Election Commission filings shows. And the total could rise after post-election financial reports are published by the commission.

No single group spent more than the Republican National Committee, which spent at least $1.2 million at the properties since the start of 2017.

About half of the RNC spending came in two installments -- $367,000 for travel expenses at Trump National Doral Miami in mid-June, after the group's spring meetings at the Florida club , and $222,000 for "venue rental and catering" at Mar-A-Lago in March connected to fundraising events at the resort.

Trump's own presidential reelection campaign was also among the groups spending the most at Trump properties throughout 2017 and 2018, despite not being on the ballot. The campaign has spent more than $950,000 at Trump properties since the start of 2017.

And America First Action -- a pro-Trump super PAC founded early in 2017 and funded primarily by GOP megadonor Sheldon Adelson -- was another top patron of Trump properties, dropping at least $360,000 throughout the cycle.

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