Republican Rep. Fred Upton (Mich.) on Monday revealed a threatening voicemail he received after voting for the infrastructure bill, according to a recording played during an interview with CNN's Anderson Cooper.
Driving the news: In the recording, a caller said: "I hope you die. I hope everybody in your f--king family dies," and also called Upton a "f--king piece of sh-t traitor," per CNN.
Upton was one of 13 House Republicans who crossed party lines to help Democrats pass the $1.2 trillion infrastructure bill last week.
"I regret that this good, bipartisan bill became a political football in recent weeks. Our country can't afford this partisan dysfunction any longer," Upton wrote in a tweet after the infrastructure vote.
The big picture: Upton was also one of 10 House Republicans who voted to impeach former President Trump in January.
What he's saying: "I'll tell you it's a terrible way — we have seen civility really downslide here. I'm concerned about my staff. They are taking these calls," Upton told Cooper.
"These are very disturbing, adult language ... To say the least, that truly is frightening."