[1] Davidson met his wife, Lisa, in 1991 while he was entering West Point and she was serving as a missionary setting up Backyard Bible Clubs for Ohio churches.

[20] In 2019, Davidson made an unsuccessful bid for chair of the caucus after Representative Mark Meadows vacated the position, ultimately withdrawing in favor of Andy Biggs.

[21] In September 2021, nonprofit group Campaign Legal Center filed an ethics complaint against Davidson with the Office of Congressional Ethics, claiming that Davidson appeared to have violated the Stop Trading on Congressional Knowledge (STOCK) Act of 2012, a federal transparency and conflict-of-interest law, by failing to properly disclose a sale of stock in Workhorse Group worth between $50,000 and $100,000 that he made in 2020.

[22] In response, a spokesperson for Davidson claimed that the proper financial disclosure form had been filed on time but that the House Clerk's website had failed to publish it.

[22] In January 2022, Davidson faced backlash from Jewish groups after comparing a Washington, D.C. city ordinance requiring display of photo identification and proof of COVID-19 vaccination to enter businesses to the Holocaust.

[23] On March 19, 2024, Davidson voted "nay" to House Resolution 149 Condemning the illegal abduction and forcible transfer of children from Ukraine to the Russian Federation.

[29] In June 2021, Davidson was one of 21 House Republicans to vote against a resolution to give the Congressional Gold Medal to police officers who defended the U.S. Capitol on January 6.

He also urged NATO to stipulate that any actions Turkey took against groups like the Kurds in response to U.S. withdrawal should be treated as genocide and be grounds for removal as a treaty signatory.

[31] Davidson voted against the National Defense Authorization Act for Fiscal Year 2021, citing, among other things, "funding for military activity in Afghanistan with no change in strategy or plan to withdraw troops".

[37][38] Davidson supports curtailing many of the broad signals intelligence permissions granted in the wake of the September 11 attacks, which he has called an "extralegal spying regime" of "vague laws and lax protections".

Another came during debate over reauthorization of the Foreign Intelligence Surveillance Act (FISA), when Davidson worked with Representative Zoe Lofgren to introduce the Lofgren-Davidson Amendment.

The amendment was to serve as an outright prohibition on warrantless search of American's internet activities by the Intelligence Community via Section 215 of FISA empowered by the USA FREEDOM Act (aka the Library Records provision).

[43][44] Both went on to oppose the amendment and underlying reauthorization bill, with Davidson saying, "this is Representative Schiff and intelligence hawks working overtime to protect the surveillance state status quo.

[39] Davidson cited compromises of "Americans’ privacy in the name of fighting terror" as a reason for his vote against the National Defense Authorization Act for Fiscal Year 2021.