Oakland FBI corruption probe: CA AG Rob Bonta, Trump among politicians who received the most from Duong family [Video]

SAN FRANCISCO (KGO) — We’re learning more details about the well-connected political family that appears to be part of the FBI’s corruption investigation involving Oakland Mayor Sheng Thao.

Several homes of the Duong family, as well as the home of Mayor Thao, were raided by the FBI last month. The FBI is working in conjunction with the U.S. Postal Service and the Internal Revenue Service, several sources confirmed to ABC News.

The Duong family owns California Waste Solutions, which is a large commercial and residential recycling company servicing Oakland and San Jose. The company is operated by David Duong.

According to allegations by the Fair Political Practices Commission, David’s son Andy was behind a campaign contribution laundering scheme. Documents allege Andy “was the true source of at least 93 contributions to multiple campaign committees when he created a campaign contribution laundering scheme to benefit his family-owned company.”

RELATED: Report alleges ‘campaign contribution laundering scheme’ involving Oakland mayor, city officials

The FPPC says …