This week, South Dakota Governor Dennis Daugaard confirmed that federal officials are investigating alleged financial misconduct in the state economic development office.
The alleged misconduct likely occurred during former Governor Mike Rounds' administration.
Another investigation also involves the death of Rounds' cabinet secretary in that office, Richard Benda, who died of a gunshot wound last week.
A third investigation involves the finances of the Aberdeen beef plant Benda and Rounds supported and the state helped finance.
So, will this news have any impact on Rounds' U.S. Senate campaign?
South Dakota Attorney General Marty Jackley says Rounds was not, and is not, the target of the state investigation into the office of economic development.
Friday afternoon, Rob Skjonsberg, Rounds’ campaign manager, said in a statement that he does not believe it will have any impact on the campaign and that once the investigations are complete, the speculation will end.
"We study scandals quite often in political science because we think they have to have an impact. Here are these issues that come out about candidates and we want to know that; that's why we have campaigns. But at the end of the day, they don't seem to have staying power," Augustana College Political Science Professor Emily Wanless said.
Wanless says the type of investigation also dictates the impact on a candidate.
"The fact that it is job related does seem to me that it might have staying power with voters. Voters tend to give more weight to scandals dealing with competency and job-related issues versus personal issue scandals," Wanless said.
Election Day in the U.S. Senate race is still a year away so Wanless says the impact of this investigation depends on how long it will last and how much information is revealed in the months to come.
"If it remains legitimate, if it remains nonpartisan, if it doesn't become an attack tool for Democrats, I think it will be seen as more credible in the eyes of voters as a factor for evaluation," Wanless said.
When asked about the investigation by KELOLAND News state lawmaker Stace Nelson, who is running for the Republican nomination, replied with this statement.
"I am concerned, like everyone else, about the appearances of improprieties. I am hoping a thorough investigation is conducted into these matters free of any type of political maneuvering," Nelson said.
Republican Annette Bosworth, who is also running for the nomination, added this comment.
"You believe the system will find the truth. I expect if Governor Mike Rounds has any insight he'll cooperate fully,” Bosworth said.
Republican State Representative Larry Rhoden and Democratic candidate Rick Weiland did not respond with a comment.