John Kerry actually said...

How do we know that you're not going to have a change in Administration, they're going to just leave it again?

every step forward that this Administration has taken has been really to protect our national security, to strengthen our economy, and leave...

President Biden's immediate re-entry on the day of his inauguration... is an historic piece of legislation.

It's a matter of mathematics and physics, not politics, not ideology. It is a response to the science.