Watch CNN.com Live for gavel-to-gavel coverage of the trial of Jodi Arias, who's accused of killing her ex-boyfriend in 2008.

Today's programming highlights...

12:00 pm ET (est.) - Supreme Court federal marriage law hearing reaction - This morning, the Supreme Court will consider the constitutionality of the federal Defense of Marriage Act.  That hearing will not be televised, but we will hear from lawyers and plaintiffs in the case at its conclusion.

12:00 pm ET - Jodi Arias murder trial - Today's session begins with a hearing on a defense motion to prevent the media from receiving detailed information related to defense costs.  Testimony is scheduled to resume at 1:45 pm ET.

12:15 pm ET - White House briefing - North Korea and same-sex marriage will likely be the hot topics of discussion at today's White House briefing in Washington.

1:00 pm ET - Pelosi weekly briefing - House Minority Leader Nancy Pelosi holds her weekly briefing with reporters.  She may discuss same-sex marriage and government spending.

CNN.com Live is your home for breaking news as it happens.