A spokesman for Senate Minority Leader Harry ReidHarry ReidThis obscure Senate rule could let VP Mike Pence fully repeal ObamaCare once and for all Sharron Angle to challenge GOP rep in Nevada Fox's Watters asks Trump whom he would fire: Baldwin, Schumer or Zucker MORE (D-Nev.) said Sunday that all Americans should fear President-elect Donald TrumpDonald TrumpPerez, Ellison start multistate ‘turnaround tour’ for Dems Overnight Cybersecurity: House Intel chair says surveillance collected on Trump transition team Budowsky: Trump’s war against truth MORE's threats of legal action against his critics.

“It only took five days for President-elect Trump to try to silence his critics with the threat of legal action. This should shock and concern all Americans," Reid's deputy chief of staff, Adam Jentleson, said in a statement.

“Trump has always used threats and intimidation to silence his critics. Now he wants to silence a discussion of the acts of hate and threats of violence being committed in his name across the country. Silencing this discussion normalizes hate and intimates the victims," Jentleson added.

On Friday, Reid criticized Trump, calling him "a sexual predator who lost the popular vote."

Trump's campaign manager, Kellyanne Conway, told "Fox News Sunday" that Reid's comments were "beyond the pale."

"And he should be very careful about characterizing somebody in a legal sense. He thinks he's just being some kind of political pundit there, but i would say be very careful about the way you characterize it," Conway said.

Conway denied that she was suggesting Trump would sue the outgoing Senate minority leader over the comments, but said she hoped President Obama would tell Reid to halt the attacks.

"I'm calling for responsibility and maturity and decency for somebody who has held one of the highest positions in our government in a country of more than 300 million people," she said. "I hope President Obama calls Harry Reid today and says 'cut it out.'"

In the statement, Jentleson slammed Trump for having the support of the Ku Klux Klan, arguing that the white supremacist group views "Trump as their champion."

“But instead of rising to the responsibility of his office, Trump is hiding behind his Twitter account and sending his staff on TV to threaten his critics," Reid's spokesman said.