Wallace is a registered Democrat for several decades. That's why Biden accepted the debate, Wallace already made that shitty interview and he is a Democrat. He would never accept an honest debate.
"On October 11, 2006, The Washington Post reported that Wallace had been a registered Democrat for more than two decades. Wallace explained his party affiliation as pragmatism, saying that being a Democrat is the only feasible means of participating in the political process in heavily Democratic Washington, DC. He maintained that he had voted for candidates from both major parties in the past."
Wallace is a registered Democrat for several decades. That's why Biden accepted the debate, Wallace already made that shitty interview and he is a Democrat. He would never accept an honest debate.
"On October 11, 2006, The Washington Post reported that Wallace had been a registered Democrat for more than two decades. Wallace explained his party affiliation as pragmatism, saying that being a Democrat is the only feasible means of participating in the political process in heavily Democratic Washington, DC. He maintained that he had voted for candidates from both major parties in the past."
https://en.wikipedia.org/wiki/Chris_Wallace