Sen. Marsha Blackburn called the measure aimed at foreign interference in federal elections "overbroad."
Blackburn portrayed herself as a conservative firebrand closely aligned with President Donald Trump.
The singer made a final plea Tuesday to her fans to get out and vote.
Many conservatives are mad at the singer for endorsing a Democrat in Tennessee's Senate race.
Rep. Steve Cohen said he was joking, and doesn’t wish Rep. Marsha Blackburn any harm.
Saying he has worked with Marsha Blackburn "for some time," he adds, "And I don't know what else to say."
Rep. Marsha Blackburn mischaracterized Planned Parenthood's practices.
Mark Green withdrew his name from consideration after he came under criticism for anti-LGBTQ remarks.
"Planned Parenthood saved my life," she said.
“We are not stupid,” a constituent yelled at one point. “Stop this.”
I am writing to you, my congressperson, in this very public fashion, because I know there are people who feel the way I do about the beauty of nature and the urgent importance it holds for our future generations.
“I no longer want to remain silent over these abuses,” he says.