Yes, the VP position can remain vacant indefinitely, or at least until the end of a term when another VP can be elected through the normal process. The only thing that is lost is the tiebreaking vote. Well, and the fact that if the President has a colonoscopy and is put under sedation nobody is available to be acting President. I don’t think the House Speaker is able to take that job for just a few hours like the Vice
President can.
Kamala Harris was actually Acting President for 85 minutes in 2021, and probably at least once after that.
Yes, the VP position can remain vacant indefinitely, or at least until the end of a term when another VP can be elected through the normal process. The only thing that is lost is the tiebreaking vote. Well, and the fact that if the President has a colonoscopy and is put under sedation nobody is available to be acting President. I don’t think the House Speaker is able to take that job for just a few hours like the Vice President can.
Kamala Harris was actually Acting President for 85 minutes in 2021,
and probably at least once after that.https://www.cnn.com/2021/11/19/politics/kamala-harris-presidential-power/index.html
(nope, she did it just that once. https://en.m.wikipedia.org/wiki/Acting_President_of_the_United_States )