That's not what your source says. So, are you back to making things up again?
Try reading instead of cherry picking, there are two articles:
President Biden delays US troops' withdrawal from Afghanistan until 20th anniversary of 9/11 attacks
Tuesday 13
April 2021
A plan put in place by former president Donald Trump had set a leaving date of 1 May, something agreed with the Taliban.
The withdrawal of all US troops from Afghanistan is being delayed until 11 September - the 20th anniversary of the al Qaeda terror attacks on America.
President Joe Biden has pushed back the departure by just over four months, in contrast to the previous planned full exit date of 1 May set by his predecessor, Donald Trump.
There are currently around 2,500 US troops in Afghanistan, as well as about 1,000 British troops.
The Trump administration had agreed with
Taliban insurgents that US forces would leave on 1 May.
A Taliban statement released last month threatened a return to violence should the deadline be missed.
https://news.sky.com/story/president...tacks-12274653
The plan was still on track and Biden delayed it BEFORE this article, this is just when he announced his stupid excuse about waiting for 20 years to the day from 9/11.
Trump's temporary delay did not put things behind schedule and nobody in either article claimed it did, you just made that up.
Biden was trying to break the deal and keep the war going.