<Li> (by seniority </Li> <Li> by class) </Li> <Li> Hill committees <Ul> <Li> (DSCC </Li> <Li> NRSC) </Li> </Ul> </Li> <Ul> <Li> (DSCC </Li> <Li> NRSC) </Li> </Ul>

Who is the current majority leader of the senate 2017