Trump campaign’s fundraising boost helps erase Biden’s cash advantage ABC NewsWho Is Timothy Mellon? Trump’s Biggest Donor Is A Secretive Billionaire Banking Scion Who Paid $53 Million For Border Wall. ForbesPro-Trump Group Gets $50 Million Donation From Timothy Mellon The New York TimesThis billionaire has given $75 million to Trump, $25 million to RFK Jr. Business Insider