Just green lighted the CCP to do what it wants regarding Taiwan.
Now we know who runs the Biden administration — the White House.
Dean Acheson did the same thing back in January 1950 by defining our perimeter in detail and deliberately excluding Korea.
Our enemies back then, as they will today, interpreted that as indicating that saying we will not intervene if they invade.
Our enemies my be evil, stupid, or whatever, but one thing that is not a shortcoming with them is recognizing weakness.
Interesting, to retrospectively look at Leftist explanations, they use pretzel logic to try and relieve Dean Acheson and the State Department (and the Truman White House) of any culpability.
In reality, they Leftists are far more craven and evil today than they were back in 1950.