Donald Trump, Elon Musk, and Nelson Peltz met for breakfast, where they criticized Joe Biden and brought along their sons Barron, X, and Diesel

• Elon Musk had breakfast with Donald Trump and Nelson Peltz in March, The Wall Street Journal reported.
• The men shared gripes about Joe Biden's performance as president and talked about voter fraud, .
• It's one example of how much relations between Musk and Trump have warmed up.

You can trace the warming relationship between former President Donald Trump and Elon Musk to some eggs, bacon, and fruit on a Sunday morning.

The two men met with Nelson Peltz in March at Montsorrel, Peltz's estate in Palm Beach, Florida, the Wall Street Journal reported Wednesday. The three talked about this fall's presidential election and took similarly critical stances on President Joe Biden's administration, according to the Journal.

The meeting was first reported by the New York Times in March. Trump sought major donations to his campaign from multiple GOP donors who were there, the Times reported.

Also on the agenda was a "data-driven" project to combat voter fraud that Peltz and Musk have been discussing. They first mentioned the project to Trump at the breakfast meeting, the Journal reported. Voter fraud in the US is rare. However, it has become an interest of Trump since he falsely claimed that he won the 2020 presidential election.

The three billionaires also brought their sons with them to the breakfast. Diesel Peltz, Nelson's son, was at the event, as were Barron Trump, the former president's 18-year-old, and X, Musk's toddler, the Journal reported.

The meeting is one example of an apparent turnaround in the relationship between Musk and Trump. As recently as a few years ago, Musk called Trump a "bullshitter."

Now, Musk is under consideration for a role advising Trump if he is re-elected this November, the Journal reported.

"President Trump will be the only voice of what role an individual plays in his presidency," Brian Hughes, a spokesman for the Trump campaign, told the Journal in response to the report about the breakfast meeting and a potential role for Musk at the White House.

Representatives for the Trump campaign and Musk did not immediately respond to requests for comment from Business Insider.