United States Reps. Tammy Baldwin, D-Wis; Barney Frank, D-Mass.; Steven Israel, D-N.Y.; Jared Polis, D-Colo.; and nearly 50 other colleagues recently sent a letter to Office of Management and Budget ( OMB ) Director Peter Orszag, asking that the 2010 census count same-sex married couples, according to a Congressional press release.The landscape has changed greatly since the 2000 census, when no same-sex marriages were allowed in the U.S. Now, Massachusetts, Connecticut, Vermont, Maine and Iowa allow gay marriage, while other states seem to be on the verge of doing so.