Who won the debate? Biden or Ryan?

[yum123]

gergroy said:

yum123 said:
I think biden won. But what does a vice president actually do. Like what power do they have and what decisions can they make. Im not fully knowledgeable with american politics.

they lead the senate.  Essentially they just act as a tie breaker.  That is also ignoring the fact that if anything happens to the president, then they become president.  

basically, they are like the alternate cast in the play.  If anything happens to the lead, the alternate fills in.  

I get that much but like in terms on normal activity like today does jo biden literally just act sort of liek an employee for obama kind of like a sales and marketing man. obama makes all the desicions and the vice president just promotes and supports them.