Since 2009, the White House has been making changes to legal procedures that make the transition for transgender individuals easier.
From The Washington Post:
Years before the White House was lit in rainbow colors celebrating the Supreme Court’s decision legalizing same-sex marriage, President Obama used a routine bureaucratic tool that ended up significantly changing the government’s understanding of gender and how it can be changed.
The process began during Obama’s first year in office when he issued a memo in June 2009 instructing agencies to extend to same-sex couples some benefits that the spouses of federal employees receive. Over time, that directive led to a decision by the Social Security Administration to greatly lower the threshold requirements for changing one’s sex on official government documents, a change that would determine how a person’s gender is recorded on passports, tax returns, marriage licenses and other documents.