Vice President Joseph Biden travels to Los Angeles on Thursday to attend fundraisers and a roundtable with supporters from the gay and lesbian community.
The LGBT event will be at the home of HBO's Michael Lombardo and his husband, architect and designer Sonny Ward, sources said.
Obama's reelection campaign has been making extensive efforts to reach gay and lesbian donors, emphasizing the repeal of "Don't Ask, Don't Tell" and the president's decision not to defend the Defense of Marriage Act. Nevertheless, there is pressure on the Democratic party to adopt marriage equality as a platform at the national convention in early September.
Obama is expected to headline a fundraiser aimed at gay and lesbian donors in Los Angeles on June 6.