Ahead of Wednesday's second quarter fundraising deadline, EMILY's List — a group advocating for the election of pro-choice women to political office — is making a last-minute fundraising appeal for Rep. Dina Titus (D-Nev.) and candidates Julie Lassa in Wisconsin and Terri Sewell in Alabama. 

EMILY's List President Stephanie Schriock made the appeal in an e-mail to its members Wednesday afternoon. 

In Nevada, Titus is facing a challenge from Republican Joe Heck and is high on the National Republican Congressional Committee's list of targets. Americans for Prosperity and other third-party groups have already run ads attacking Titus.

Lassa, who won the backing of retiring Rep. David Obey (D-Wis.) on Monday in the race to replace him in Congress, is expected to have a close contest against Republican Sean Duffy. Duffy's first-quarter fundraising numbers were impressive, and he has the attention of some national conservatives after winning the backing of Sarah Palin.