President Obama and first lady Michelle Obama appeared in a video released Tuesday, urging their supporters to volunteer the weekend before Election Day on Nov. 2. . The Hill’s blogging, “The video was cut for Organizing for America, an offshoot of Obama's grassroots political operation that helped propel him to victory in 2008. Both Obamas urged supporters to sign up for shifts making phone calls and getting voters to polling places. The video is yet another sign Democrats are keying in on their base supporters to help keep the congressional majorities intact against an expected Republican wave."