Anything Trump says about what he knew/knows, or when he know it has to be taken with a large grain of salt.Remember that Trump's comments to Woodward about the virus being airborne were on February 7. Now, unless you think the Donald was conducting the studies or compiling the data and evidence that lead to that comment, and that Fauci was completely excluded from whatever evidence, briefing, etc. where Trump learned that, and that information about how the virus was spread was deliberately withheld from Fauci, that a pretty inconvenient fact.
The 60 Minutes interview was from March 8 I believe. Fauci was lying.
The same can be said of the media, including (or especially) outlets like CNN, which has been riding the Woodward interview. CNN is saying Trump knew it was airborne, but that's not what he said. Trump said "it moves through the air." That's true of a lot of things - colds, flu, chickenpox, measles...in fact, just about any disease you can think of can be transmitted through the air. By common definition, that makes them airborne. But in epidemiology and infectious disease circles, the fact that a disease can be transmitted through the air does not make it airborne. The "airborne disease" designation is reserved for those diseases that are spread in small droplets, suspended in the air for long periods and over long distances. I have no doubt that Fauci was applying the infectious disease definition of airborne, while Trump was using the dictionary definition. Even now, there's mixed information on whether COVID is truly airborne...the official position seems to be mostly no - but that it can be under some circumstances.
So, there are multiple things at work. Fauci said it's not airborne based on information at the time - most of the studies out of China and early US/European ones showed it wasn't airborne based on the public health definition. Trump said it's spread through the air based on a lay/literal definition. Left-leaning, anti-Trump media has taken that and run with it, exaggerating what was said and what it means...and ignoring the disconnect between the lay definition and the public health one.
By May/June, some studies suggested potential airborne spread. Most of those have now been refined to show that droplet transmission in close proximity (2 meters, somewhat arbitrarily) to an infected person is the primary mode of spread, but that in poorly ventilated areas, or when large volumes of droplets are created (such as during intubation or some other medical procedures) then droplet transmission is possible outside of the 2 meter distance and/or separated by time.
So, still not a lie. Statement based on a specialized definition and on information available at the time. A lie would be a statement in spite of information available - something like...oh, I don't know - 'my inauguration was the biggest ever'. Or 'mail-in ballots have rampant fraud.'