Vice President Joe Biden said he’s “absolutely comfortable” with marriage equality, and Education Secretary Arne Duncan didn’t mince words: He is for same-sex marriage.

Los Angeles Mayor Antonio Villaraigosa even endorsed including a same-sex marriage plank in the national party platform.

Today, according to The Hill, Rep. John Larson (D-Conn.) said that there are “mixed views” among House Democrats….

“But a vast majority of our caucus is where Biden is.”

With so many groups and prominent individuals openly supporting marriage equality, and polls showing that more and more Americans agree, more pressure is being exerted to add it to the 2012 platform… which puts the president in the uncomfortable position of either frustrating gay rights voters or their opponents.

Fred Sainz, vice president for communications at the Human Rights Campaign:

If not for Obama’s reluctance, he said, “this would be something that would sail into the platform.”

Just say yes, Mr. President.