Martha Coakley’s campaign is bringing out the big guns in its advertising in the final days before the Massachusetts special election.

White House advisor Valerie Jarrett told MSNBC Thursday morning that President Obama has recorded a Web video expressing his support for the Massachusetts attorney general’s Democratic candidacy.

Coakley “has his full support,” Jarrett said of Obama, but said she didn’t know what his plans were for the weekend, in terms of campaigning in Massachusetts.

The Associated Press reports that Vicki Kennedy, widow of Sen. Edward Kennedy (D-Mass.), whose death in August triggered the special election, has cut an advertisement for Coakley, as well.