It did not matter how many wars one could point to in history that began unintentionally, with unchecked, dangerous tensions spiraling out of control. Anyone warning of this obviously dangerous possibility was met with the “straw man” cliché: you are arguing against a position that literally nobody in D.C. is defending.

Less than a week into this war, that can no longer be said. One of the media's most beloved members of Congress, Rep. Adam Kinzinger (R-IL), on Friday explicitly and emphatically urged that the U.S. military be deployed to Ukraine to establish a “no-fly zone” — i.e., American soldiers would order Russia not to enter Ukrainian airspace and would directly attack any Russian jets or other military units which disobeyed. That would, by definition and design, immediately ensure that the two countries with by far the planet's largest nuclear stockpiles would be fighting one another, all over Ukraine.

It is genuinely hard to overstate how overwhelming the unity and consensus in U.S. political and media circles is. It is as close to a unanimous and dissent-free discourse as anything in memory, certainly since the days following 9/11. Marco Rubio sounds exactly like Bernie Sanders, and Lindsay Graham has no even minimal divergence from Nancy Pelosi. Every word broadcast on CNN or printed in The New York Times about the conflict perfectly aligns with the CIA and Pentagon's messaging. And U.S. public opinion has consequently undergone a radical and rapid change; while recent polling had shown large majorities of Americans opposed to any major U.S. role in Ukraine, a new Gallup poll released on Friday found that “52% of Americans see the conflict between Russia and Ukraine as a critical threat to U.S. vital interests” with almost no partisan division (56% of Republicans and 61% of Democrats), while “85% of Americans now view [Russia] unfavorably while 15% have a positive opinion of it.”