user: Choose the next sentence for this paragraph.

Washington (CNN) -- The National Republican Senatorial Committee pushed its first TV spot in a $1 million ad campaign in South Dakota to attack the Republican nominee's top two opponents in what has become a competitive three-way race for the seat. The 30-second spot, which hit South Dakota airwaves Tuesday, links Democratic opponent Rick Weiland and Republican-turned-Independent former Sen. Larry Pressler as holding the same positions on gun laws, energy and Obamacare and comes less than a week after Democrats announced their own $1 million campaign to attack Republican nominee former Gov. Mike Rounds. Republicans also deployed two political operatives to South Dakota to boost Rounds' campaign operation.

But some also suggest that the

OPTIONS:
- CNN, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- DSCC, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Democratic, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Democrats, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- GOP, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Larry Pressler, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Mike Rounds, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- National Republican Senatorial Committee, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Obamacare, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Republican, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Rick Weiland, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Rounds, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- South Dakota, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.
- Washington, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.



assistant: DSCC, which has a bigger war chest than their Republican counterparts, could be trying to thin the NRSC's resources in a state where they likely would not have otherwise pumped cash.