Mark Lamb

Mark Lamb (Republican, AZ-05, Arizona (member-elect)). Elected November 3, 2026: Open seat; replacing Andy Biggs (R).

Background: Pinal County Sheriff.

Campaign money

• Raised $1,771,671 for the 2026 race, spent $1,590,920, $180,751 cash on hand (FEC filings through Oct 14, 2026).
• 90% of the money came from individuals; $129,150 from PACs and party committees.
• 1,211 itemized individual donors; 55% of itemized individual money came from Arizona.
• Details: https://congresstracker.us/mark-lamb/money

Expenses

• Campaign spending: $1,550,920, including $43,646 on travel (FEC filings through Oct 14, 2026).
• Details: https://congresstracker.us/mark-lamb/expenses

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