E-mails also went out from U.S. Sen. Jeanne Shaheen, D-N.H., and Congressman Paul Hodes, D-N.H., who is also running for the U.S. Senate.
Mark Bergman, a spokesman for the Hodes campaign, said they have been working closely with Coakley's campaign in the close race.
"It's an important race, and not just for Massachusetts. It's an important race for middle class families across the country to make sure we are able to pass health reform," he said. "That's the priority for Paul, and we're going to be doing everything we can to help Martha Coakley win this race."
Lenore Patton, chairwoman of the Rockingham County Democratic Committee, and her husband Gary, both of Hampton, have been making phone calls to Massachusetts voters for Coakley's campaign. She also has been alerting local activists.
"I have been spreading the word among the Democrats in the county that Martha needs our help," Lenore Patton said, "and passing on information from other sources telling them how to connect with their campaign."
Gary Patton said the cause has "caught on like wildfire" among New Hampshire Democrats.
"It would be shameful if Brown won Kennedy's seat and then stopped health care reform, which he has already promised he would do," Lenore Patton said. "That would be a disgrace."
The Republican Party of New Hampshire urged Republicans to get involved in the race via e-mail. The party's spokesman did not return calls for comment yesterday, nor did the Brown campaign.
New Hampshire Republican Senate candidate William Binnie appeared in a campaign ad paid for by Americans for Responsible Health Care that starting airing in the Boston media market last week. The ad campaign cost more than $200,000, according to a press release from the group.