SIEBEL, THOMAS M. (CA) Federal Political Campaign Donations in the 2025-2026 Election Cycle

Updated on July 5, 2026.

According to FEC data, in the 2025-2026 election cycle, SIEBEL, THOMAS M. made a total donation of $316,063 to 7 unique election committees. GROW THE MAJORITY received the highest donation ($250,000), followed by MCCORMICK VICTORY FUND ($30,000), and DAINES SENATE MAJORITY FUND ($12,000).

The chart below shows the total amount received by each commitee. The table below shows the individual donations made and the transaction dates.

You can see similar information for other individuals in California.

*** Note: By Federal Law, you cannot use these contributor information for the purpose of soliciting contributions or for any commercial purpose. There is the possibility of multiple people having the same name in the state. Please contact us if you want to verify the donation amounts by the zip code for each transaction.

Related Topics: US FEC Topic List
Data Source: FEC.
SIEBEL, THOMAS M. (CA) Federal Political Campaign Donations in the 2025-2026 Election Cycle
GROW THE MAJORITY
MCCORMICK VICTORY FUND
DAINES SENATE MAJORITY FUND
GRAHAM MAJORITY FUND
MISSISSIPPI REPUBLICAN PARTY
JAMES, JOHN
ZINKE, RYAN K
SIEBEL, THOMAS M. (CA) Federal Political Campaign Donations in the 2025-2026 Election Cycle
0 of 0
Date Recipient Amount ($)
Feb 28, 2025 GROW THE MAJORITY 250000
Mar 5, 2025 MISSISSIPPI REPUBLICAN PARTY (REP) 5063
May 21, 2025 DAINES SENATE MAJORITY FUND 12000
May 27, 2025 GRAHAM MAJORITY FUND 12000
Jul 1, 2025 JAMES, JOHN (REP) 3500
Oct 28, 2025 MCCORMICK VICTORY FUND 30000
Nov 13, 2025 JAMES, JOHN (REP) 3500
Nov 13, 2025 JAMES, JOHN (REP) -3500
Mar 11, 2026 ZINKE, RYAN K (REP) 3500