The nine justices of the US Supreme Court are widely expected to decide in a private meeting to enter the legal fray raging over same-sex marriage.
Thirty-one of the 50 states have passed constitutional amendments banning gay marriage, while Washington DC and nine other states have legalised it.
There is a growing demand to settle the matter on a nationwide scale.
Al Jazeera’s Kristen Saloomey reports.
Source: Al Jazeera