President Obama has declared June to be National Lesbian, Gay, Bisexual and Transgender Pride Month. There was an interesting change on the President's website from 2009 to 2010 in the wording of the language of this proclamation.
May 28, 2010 version of the Proclamation: (excerpt)
Here at home, I continue to support measures to bring the full spectrum of equal rights to LGBT Americans. These measures include enhancing hate crimes laws, supporting civil unions and Federal rights for LGBT couples, outlawing discrimination in the workplace, ensuring adoption rights, and ending the existing "Don't Ask, Don't Tell" policy in a way that strengthens our Armed Forces and our national security. We must also commit ourselves to fighting the HIV/AIDS epidemic by both reducing the number of HIV infections and providing care and support services to people living with HIV/AIDS across the United States.
June 1, 2009 version of the Proclamation: (excerpt)
Much work remains to fulfill our Nation's promise of equal justice under law for LGBT Americans. That is why we must give committed gay couples the same rights and responsibilities afforded to any married couple, and repeal the Defense of Marriage Act. (emphasis mine) We must protect the rights of LGBT families by securing their adoption rights, ending employment discrimination against LGBT Americans, and ensuring Federal employees receive equal benefits. We must create safer schools so all our children may learn in a supportive environment. I am also committed to ending "Don't Ask, Don't Tell" so patriotic LGBT Americans can serve openly in our military, and I am working with the Congress and our military leadership to accomplish that goal.
Read the official version of the proclamation 2009 Version
Here's the 2010 Version
Read about the powers of a presidential proclamation at Wikipedia