Former U.S. representative Joe Walsh's campaign for President of the United States in the 2020 election began on August 25, 2019, when he announced his candidacy during an interview on ABC's show This Week, concurrently with the release of a video and a tweet.

Walsh had been a strong supporter of Trump's during the 2016 election but had gradually become disenchanted with the President, describing him as "morally unfit".

During that race, Walsh again made national headlines when he criticized Duckworth for discussing her military experience so much on the campaign trail.

(Duckworth was seriously injured in a helicopter crash during the Iraq War, leading to a double leg amputation and loss of some sensation in her right hand, among other injuries.)

"[11] After the 2016 shooting of Dallas police officers, Walsh's Twitter account was temporarily suspended after he made statements critical of Obama and the Black Lives Matter movement that were perceived as threatening.

Walsh initially endorsed Kentucky Senator Rand Paul in the 2016 Republican primaries but supported Trump once he had secured the nomination.

"[22] After months of speculation, Walsh officially announced he would challenge Donald Trump on August 25, 2019, via a post made on Twitter and a video released on his website, alongside an interview on ABC's This Week.

[24] In an interview with MSNBC shortly after announcing his candidacy, Walsh said that, should he be unsuccessful against Trump, he could be persuaded to vote for the Democratic nominee in the general election.

Walsh began apologizing for his past controversial statements, including rescinding his remarks that Barack Obama is Muslim.

Walsh's show will still air on Chicago's WIND until his paperwork to run is officially filed, then will likely be suspended or discontinued.

[29] On November 8, 2019, Walsh said in an interview that he would be more "pro-Israel" than Trump and stated that he would push for a one-state solution from Jordan to the Mediterranean if elected president.

[30] In an interview with CNN on February 7, 2020, Walsh announced he was suspending his campaign after receiving only 1.1% of the vote in the Iowa caucuses.