Rep. Bruce Braley (D-IA) and Rep. Dave Loebsack (D-IA) both told The Des Moines Register last week that they had received threats.
Braley reported threats of physical violence, while Loebsack aides told the Register that the congressman has been sent "disturbing messages."
In a statement obtained by the Register, Iowa Democratic Party Chairman Michael Kiernan said:
At the Iowa Democratic Party, we will take whatever steps necessary to ensure that our elected officials, staff and volunteers are safe. Democrats are committed to moving Iowa forward and we will not be deterred.
View TPM's running list of lawmakers who have received threats following the health care vote here.