[1] The Republican incumbent, Senate Minority Leader Charlie Copeland, was not seeking re-election, instead running for lieutenant governor.
[3] Katz won the Democratic nomination over nonprofit executive Dee Durham with 63.0% of the vote before edging out Republican State Committee of Delaware member John Clatworthy in the general election by just 1.3%.
[9] In 2011, Katz accused Democratic state representative Bryon Short of plagiarizing a bill he wrote to establish an accreditation process for abortion clinics.
"[10] However, in 2012, Katz and Short collaborated on a bill to strengthen restrictions on door-to-door salesmen that successfully passed the legislature.
In the general election, he faced Republican Gregory Lavelle, the Minority Leader of the Delaware House of Representatives.
[6] Katz returned to politics in 2023 when he accepted the Independent Party of Delaware's nomination for U.S. Senate at its July 1, 2023 convention in Dover.
The incident became a contentious issue during Katz's 2012 re-election campaign, as his opponent accused him of using his injuries as an excuse for frequently missing state meetings.