Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's two older sons are reportedly behind a nonprofit that is selling access to the president-elect during inauguration weekend, the Center for Public Integrity reported Monday.

The Opening Day Foundation offers access to Trump in exchange for million-dollar donations to "conservation" charities, according to the report.

Donors to the "Opening Day 2017" event can get a "private reception and photo opportunity for 16 guests with President Donald J. Trump," a "multi-day hunting and/or fishing excursion for 4 guests with Donald Trump, Jr. and/or Eric Trump, and team," and tickets to other inauguration events.

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According to the Center for Public Integrity, the foundation was created on Dec. 14.

TMZ.com first published a brochure about the inaugural event, the center notes.

The brochure says “all net proceeds from the Opening Day event will be donated to conservation charities,” but it does not name the charities or detail how the amount will be calculated.

Walter Kinzie, CEO of a Texas event management company, confirmed to the Center for Public Integrity that the Opening Day Foundation has hired his company to manage the event.

The paperwork for the foundation listed four directors: Donald Trump Jr., Eric Trump, Dallas investor Gentry Beach and Tom Hicks Jr., the son of a Dallas billionaire.

Kinzie told the Center for Public Integrity the information posted by TMZ was not entirely accurate and said the participation of Trump family members is not confirmed. A Center for Public Integrity review of Texas incorporation records found the Opening Day Foundation was created less than a week ago, on Dec. 14. Unlike political committees, such nonprofits aren’t required by law to reveal their donors, allowing sponsors to write seven-figure checks for access to the president while staying anonymous, if they choose.

The event offers sponsor packages ranging from $25,000 to $1 million.

The Trump family has come under scrutiny since the election as questions swirl about how Trump will handle his business interests in office. He has said his adult children will take over, but has offered no concrete details.

A charity auction for a coffee date with future first daughter Ivanka Trump appeared to have been shut down over the weekend.

Money raised from the auction was set to benefit the Eric Trump Foundation, which supports St. Jude Children’s Research Hospital in Tennessee.

But Eric Trump said last week that he was considering shutting down the auction after facing questions from The New York Times about whether it could come across as influence pedaling.