In a fundraising e-mail penned for the political action committee EMILY’s List, Sen. Barbara Mikulski (D-Md.) warns that Republicans are “raising money at an alarming rate” for this fall’s elections.

The e-mail is part of the group’s push to get donations in the door before the end of the month to meet its July fundraising goal. 

“The GOP is targeting seats across the nation, leaving nothing off the table,” Mikulski wrote in the e-mail to EMILY’s List supporters. “They’re raising money at an alarming rate. They have more than $200 million pledged from right-wing groups who would profit from Republican wins.” 

EMILY’s List has propped up several Democratic House challengers this cycle, lending fundraising help to Julie Lassa, who is running to succeed retiring Rep. David Obey (D-Wis.), and Tarryl Clark, who is challenging Rep. Michele Bachmann (R-Minn.).