Bob Vander Plaats, CEO of The FAMiLY LEADER, a local group that opposes same sex marriage isn't worried that his marital rights are at stake this week.
"It's probably not going to impact my marriage,” said Vander Plaats.
What he says his group is worried about is the Constitution and the courts overstepping their boundaries.
"Is it going to be about we the courts by nine unelected people in robes, or is it going to be we the people,” Vander Plaats told Channel 13 News.
The federal Defense of Marriage Act was passed by Congress in 1996 and Proposition Eight by California voters in 2008.
A Supreme Court decision could knock out both, which is why Vander Plaats is headed to Washington D.C. hoping his voice will heard in the March for Marriage Rally.
"After we march up to the Supreme Court steps, we'll be delivering some remarks too,” Vander Plaats said.
Back in Des Moines are thousands of same sex couples like Tom and John Sellers.
Many can't make the trip to DC, but they have as much at stake this week as anybody.
"We think about our retirement and our later years in life. If we need nursing home care or something dependent on social security, will they see us as married? Otherwise, we're seen as two individuals,” John Sellers said.
For Tom and John, this is the final step to marriage equality.
The first was in April of 2009 when they were able to legally wed in Iowa.
"It would be a sense of happiness, and a sense of relief. It's one less thing to worry about,” said John Sellers.
The Supreme Court is expected to make a decision in June.