President Donald J. Trump campaign event at Dane Manufacturing in Waunakee, W.I. on Tuesday, Oct. 1, 2024.

RNC 2024

Former President Donald Trump speaks at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

A supporter makes a salute during the National Anthem at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

Supporters at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

President Donald J. Trump campaign event at Dane Manufacturing in Waunakee, W.I. on Tuesday, Oct. 1, 2024.

Supporters sign voting registry forms at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

Members of Service Employees International Union Local 73 chapter protests outside the Fox News Republican Debate in Milwaukee, W.I. on Aug 23, 2023. (Mustafa Hussain for The Free Press)

Becky Hauser of Dubuque, Iowa at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

Children hold signs at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

Former President Donald Trump speaks at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

Former President Trump speaks at the Team Trump Iowa Commit to Caucus Event at the Jackson County Fairgrounds in Maquoketa, IA on Sept. 20, 2023. (Mustafa Hussain for the New York Times)

Fox News Republican Debate in Milwaukee, W.I. on Aug 23, 2023. (Mustafa Hussain for The Free Press)

Fox News Republican Debate in Milwaukee, W.I. on Aug 23, 2023. (Mustafa Hussain for The Free Press)

Cook County Board Commissioner Brandon Johnson speaks at a mayoral debate against Paul Vallas, Former Chief Executive Officer of Chicago Public Schools, hosted by Coalition of African American Leaders at Kenwood Academy in Chicago, I.L. on March 18, 2023. (Mustafa Hussain for NBC)

Paul Vallas, Former Chief Executive Officer of Chicago Public Schools, at Kenwood Academy in Chicago, I.L. on March 18, 2023. (Mustafa Hussain for NBC)

The crowd shows support for Cook County Board Commissioner Brandon Johnson at the Women for Brandon event at Johnny L. Miller Center in Chicago, I.L. on March 18, 2023. (Mustafa Hussain for NBC)

Fox News Republican Debate in Milwaukee, W.I. on Aug 23, 2023. (Mustafa Hussain for The Free Press)

Vivek Ramaswamy speaks to the press at the Fox News Republican Debate in Milwaukee, W.I. on Aug 23, 2023. (Mustafa Hussain for The Free Press)