Tuesday the nine justices will hear arguments on the issue of same sex marriage, with one of the cases involving a couple from Hazel Park fighting to jointly adopt their children.
The line is long and the hopes are high outside the U.S. Supreme Court, where people have waited for days to secure a spot for the hearing Tuesday.
"We've been camped out since 8 p.m. Friday," said Frank Colasonti, Jr. who was married in Michigan. "We are going into our fourth day.
"We feel it's an honor and a privilege to watch our government actually work. We are looking forward to the oral arguments, hearing what they have to say, reading body language and hoping for the best."
University of Michigan law student Wyatt Fore made the trip and talked about the historic significance.
"Cases like this happen once in a generation," he said. "Just the opportunity to be here and witness history, not only as an activist in the LGBT movement, but also as a young lawyer, it's extremely moving. Tremendously humbling."
Protesters are there as well. Christine Weick protested in front of the federal courthouse in Detroit for weeks while the trial unfolded there. Now, she's in the nation's capital with her message.
"God draws a line on gay marriage," she said. "We read this in Romans Chapter One. It's not my opinion, it's God's."
As for the plaintiffs in this case, April DeBoer and Jayne Rowse are excited and emotional that their four-year fight to jointly adopt their children has led them here.
"This road, this four-year road, has been an amazing journey with amazing people that stand behind me," DeBoer said. "I can't believe that it's coming to an end and that Jayne and I could finally get protection for not only ourselves, but our children."
The justices will not decide the case Tuesday but are expected to rule at the end of June.
Stay with FOX 2 for updates on this developing story. FOX 2's Amy Lange is on assignment in Washington, D.C. following this case.