Rep. Haley Stevens (D-MI) has requested protection from the U.S. Marshals Service after receiving death threats following her endorsement of Republican Mike Rogers in Michigan’s closely watched U.S. Senate race, according to two senior Trump administration officials who spoke to Axios.

The officials said Stevens had contacted the Marshals Service and expected her request to be approved. One administration official said the congresswoman would have to go through the agency’s review process but expressed confidence that she would receive protection because she is a sitting member of Congress. Stevens had not publicly commented on the reported threats as of Tuesday.

The security request follows Stevens’ surprise endorsement of Rogers on Sunday, just two days before Election Day. Stevens had previously competed against Democratic nominee Abdul El-Sayed in the August Senate primary, narrowly losing before initially indicating that she would support him in the general election.

The relationship between the two Democrats deteriorated in the final days of the campaign amid disagreements over Israel and an advertisement from an outside political group that Stevens criticized as antisemitic. Stevens pressed El-Sayed to condemn the advertisement more forcefully. El-Sayed later rejected its contents, but the dispute escalated after his campaign indicated that Stevens was no longer welcome at campaign events.

Stevens subsequently appeared alongside Rogers at a Detroit church service and publicly announced her endorsement, saying El-Sayed had made clear that she did not belong in his campaign. President Donald Trump praised the decision, while several Democratic lawmakers sharply criticized Stevens. Her chief of staff, Justin German, also resigned, saying that multiple members of her staff had left following the announcement.

The reported death threats add a security dimension to an already contentious political dispute in Michigan, where Rogers and El-Sayed are competing for the Senate seat being vacated by retiring Democratic Sen. Gary Peters.