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.
With everything going on in politics, Taylor Swift just can’t shake off her urge to finally speak up.
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.