2003–2021: Fox News and presidential debates
After 14 years at ABC, Wallace left in 2003 to join Fox News. Wallace began hosting Fox News Sunday with Chris Wallace in 2003 after replacing Tony Snow. Wallace and Shepard Smith gained a reputation at Fox for their reputable status as journalists on the network. In an interview with the Chicago Tribune, Howard Kurtz wrote, "Fox seems to be inching toward more conventional journalism." When asked about his political opinions, Wallace stated, "Do I have political opinions? Absolutely. But I vote for the person, and I've voted for Republicans and Democrats and independents over the course of my life. I feel very strongly that you try not to let that affect the way you report the news." Fox News Chairman Roger Ailes called Wallace "one of the best interviewers in the business. ... I have no idea what he thinks personally, but he asks tough questions of everybody."
Throughout his 18 years at Fox, Wallace had participated in coverage of nearly every major political event and secured several high-profile interviews with dignitaries and U.S. leaders. In February 2009, he secured Fox's first interview with President Barack Obama. On March 3, 2016, Wallace joined Bret Baier, and Megyn Kelly in moderating the 2016 Republican Party Presidential debate on Fox News. In 2017, he interviewed President Donald Trump in his first interview since being elected.
The Commission on Presidential Debates selected Chris Wallace as moderator of the third and final 2016 Presidential debate between Donald Trump and Hillary Clinton. The debate was held on October 19, 2016, at the University of Nevada, Las Vegas. This was the first time a Fox News anchor had moderated a general election presidential debate. After he was selected, Wallace said, "it's not my job" to fact-check candidates, but that it was the job of the opposing candidate. Wallace stated, "I take it very seriously, this is not a TV show. This is part of civics, the constitution, if you will, in action, because this is helping millions of people decide who we're going to elect as the next president".
He received notable praise from both sides of the aisle for his tough questioning of both presidential candidates at that last presidential debate of the 2016 election. Afterward, Jennifer Rubin in The Washington Post said that, despite her strong disapproval of other Fox News commentators, "No one could watch the final debate and deny that Chris Wallace is among the best in the business." The New York Times wrote, "Mr. Wallace mixed humor with scolding and persistence with patience to guide his charges toward the most substantive encounter of an unusually vicious election."
In July 2018, Wallace interviewed Russian leader Vladimir Putin. Wallace questioned Putin about why so many of his political opponents end up dead, and sought to hand Putin papers containing the indictment of 12 Russian agents for interference in the 2016 election. Putin declined to touch the papers. According to The Washington Post's Aaron Blake, Putin was "clearly frustrated by a journalist actually challenging him". According to The New York Times, Wallace's interview was "widely praised". His interview earned him a News & Documentary Emmy Award nomination for Outstanding Live Interview. However, the winner was Christiane Amanpour via CNN International’s Amanpour, in which she interviewed the Archbishop of New York Cardinal Timothy Dolan.
It was the first News & Documentary Award nomination in Fox News' history.
In September 2018, Wallace covered the Supreme Court hearings for Brett Kavanaugh, during which Kavanaugh was accused of sexual assault by multiple women, including Christine Blasey Ford. Wallace described Ford's testimony as "extremely emotional, extremely raw, and extremely credible...nobody could listen to her deliver those words and talk about the assault and the impact it had had on his life, on her life, and not have your heart go out to her. She obviously was traumatized by an event." He also described the cross-examination format as "a disaster for the Republicans." When Ford's testimony was criticized by conservative pundits, Wallace discussed how his daughters had related their own previously undisclosed experiences. Wallace said they "hadn't told their parents, I don't know if they told their friends. Certainly had never reported it to police...But the point is that there are teenage girls who don't tell stories to a lot of people, and then it comes up, and I don't think we can disregard that, I don't think we can disregard Christine Blasey Ford and the seriousness of this. I think that would be a big mistake."
On January 27, 2020, Wallace got into a heated exchange with conservative pundit Katie Pavlich of TownHall.com on Fox News Sunday as to whether or not additional witnesses should be allowed to testify during the 2020 Impeachment trial of Donald Trump in the Senate. Pavlich argued that Republicans should be allowed to deny Democrats the right to call witnesses during the trial citing the 1998 Investigation and Impeachment of Bill Clinton. Wallace objected stating, "So we just shouldn't listen to what John Bolton has to say?", elaborating, "To say in the Clinton investigation, these people who were interviewed by the House — one, they weren't — and to say that it wasn't done by the Justice Department... It wasn't done because the Justice Department refused to carry out the investigation! Get your facts straight!"
On July 19, 2020, Wallace sat down with President Donald Trump for a wide-ranging interview outside The White House. The interview gained much attention on social media and conventional news outlets for its content. Wallace earned praise for holding Trump accountable and fact-checking him in real time. In the midst of the ongoing nationwide Black Lives Matter protests over the murder of George Floyd, Wallace pressed Trump on his claim that Joe Biden, the presumptive 2020 Democratic presidential nominee wanted to "defund and abolish" the police by replying "No, sir, he does not." In reference to the COVID-19 pandemic, Wallace also challenged Trump on his exaggerated claims concerning the mortality rate and testing for COVID-19. When confronted by the statistics, the President responded: "I'll be right eventually." Many have compared the interview style with that of Wallace's father, 60 Minutes journalist Mike Wallace. This includes Frank Sesno, a professor at George Washington University who teaches a class on "the art of the interview", who stated, "He's very good at this. He's been doing this for a long time. And he's got the Wallace DNA." Many noticed Trump's awkwardness during the interview, including Meghan McCain who stated on The View that, "it was the first time I've really seen President Trump squirm."
The Commission on Presidential Debates (CPD) selected Wallace as moderator of the first presidential debate, held on September 29, 2020, at Case Western Reserve University in Cleveland, Ohio. The debate was deemed a "disaster" by various news pundits for its lack of decorum, civility, and content. During the debate, Wallace tried to gain control numerous times including stopping the debate and telling the candidates, specifically Trump, "So here's the deal...I think the country would be better served if we allowed both people to speak with fewer interruptions, I'm appealing to you sir".
Numerous post debate polls declared Biden the winner of the debate. In response to the debate, Wallace shared his frustration with the President in an interview with Bill Hemmer where he stated that Trump "bears the primary responsibility for what happened" and that "It was frustrating for me because I tried hard to prepare for a serious debate, much more frustrating and more importantly for the American people because they didn't get the debate they wanted that they deserved." Some viewers, including several Fox News personalities, accused Wallace of unfairness towards Trump, though Fox News executives released a statement commending Wallace's "professionalism, skill and fortitude in a unique situation." The CPD also praised Wallace stating, they were "grateful to Chris Wallace for the professionalism and skill he brought to last night's debate" while also stating they intend to ensure that additional tools to maintain order are in place for the remaining debates."
On November 3, Wallace joined Brit Hume, Juan Williams, and Dana Perino in Bret Baier and Martha MacCallum's election night coverage of the 2020 presidential election on Fox News. Wallace defended the network's decision to call Arizona for Biden over Trump despite being under tremendous pressure from Trump and his campaign. Later that night, Trump prematurely declared victory in the election, saying: "Frankly, we did win this election," despite there having been too few results received from other states for either Trump or Biden to have won. Trump also stated he wanted "all the voting to stop". Wallace reacted to the President's claim by stating on air: "This is an extremely flammable situation and the president just threw a match into it. He hasn't won these states ... the president doesn't get to say he won states ... there's no question that all these states can continue to count votes." Wallace further condemned Trump's wanting to halt votes from being counted by saying that it was "extremely irresponsible" and that he did not think the courts would allow it.