Two Rivals in Michigan’s Crucial Senate Contest Say They Were Both Swatted

The two leading contenders for Michigan’s open Senate seat disclosed that they had been targeted in separate “swatting” incidents in a span of less than 24 hours, just days after winning primaries in a crucial contest that could determine which party controls the chamber.

The first incident, involving Representative Elissa Slotkin, a Democrat, happened on Thursday night at her home in Oakland County, north of Detroit. The second one occurred on Friday at an address that had been listed on public records under the name of Mike Rogers, the Republican candidate and former House member, in neighboring Livingston County.

Politicians on both sides of the political aisle have increasingly been the target of swatting in recent years. The hoaxes — when false threats are deliberately made to law enforcement to draw a heavily armed response to a person’s home — have added to a climate of intimidation and the harassment of public officials.

Ms. Slotkin was not home at the time of the incident, according to a spokeswoman for her office, Lynsey Mukomel, who said in a statement that Michigan State Police troopers went to the residence after a false threat was emailed to a local official. She did not elaborate on the nature of the false threat. Michigan State Police confirmed they responded.

“Michigan State Police checked the property and confirmed no one was in danger,” Ms. Mukomel said, adding that U.S. Capitol Police would investigate the incident.

Mr. Rogers, a former longtime House member who was endorsed by former President Donald J. Trump, experienced a similar incident around 12:30 p.m. Eastern time on Friday, said Chris Gustafson, a spokesman for his campaign.

A person reported that a man was holding a woman at gunpoint at the