A Michigan resident last week admitted to leaving racist voicemails at Sen. Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE's (D-N.J.) office and threatening to place a firearm in the lawmaker's face.

Rick Lynn Simmons, 52, pleaded guilty to one count of interstate communication with threat to injure, according to NJ.com, citing a statement from the U.S. Attorney’s Office for Western Michigan.

ADVERTISEMENT

Simmons, who was indicted in January, faces up to five years in prison and a maximum fine of $250,000, NJ.com noted. He will be sentenced in early June.

Simmons reportedly placed the threatening calls to Booker's Senate office in Camden, N.J., in late October from his home in Kent County, Mich.

Authorities said Simmons said he'd put a 9 mm handgun in Booker's face multiple times.

“Come on, you bring it on buddy. Just me and my wife and we got guns a blazin’ you wanna come in here?” he reportedly added.

U.S. Attorney for Western Michigan Andrew B. Birge said no individual deserves to receive "threatening messages designed to dehumanize, intimidate and terrorize."

Booker, who launched his 2020 presidential campaign earlier this year, was the target of multiple threats last October.

In addition to the threatening voicemail, a suspicious package, similar to the ones sent to a bevy of prominent Democratic officials, was addressed to his office in New Jersey.

The package was intercepted in a South Florida U.S. Postal Service mail sorting facility, according to NJ.com. Cesar Sayoc Jr. was later charged with mailing explosives to Democrats and critics of President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE.