This isn't a greatly flawed article from Ruetuers, one of the reasons being that it's short.
That said, Biden and Levin make withdrawal statements and Rueters attributes it less precisely to "Democrats".
Now of course Levin and Biden are Democrats but so are (now) a majority of others, as a group, with this majority group recently being elected by the voters.
Hmmm, Democrats win election; Democrats (the connotation being all of them) want withdrawal within four to six weeks and thus the American people want withdrawal within four to six weeks.
Mild bias by Reuter's standards to be sure, but I believe the ambiguity in the title is there for a reason.
As I said before, humans write articles, and, as one of my protagonists said, no one should use a single source for anything.
Did they really say, 4-6 weeks?