President Obama will deliver his fourth State of the Union address before Congress tonight.  Watch CNN.com Live for all of your political coverage.

Today's programming highlights...

Ongoing coverage: North Korea's nuclear test

9:30 am ET - Military sequestration hearing - What would threatened across-the-board budget cuts mean for the U.S. military and national defense?  Top Pentagon and military officials discuss the matter before the Senate Armed Services Committee.

12:30 pm ET - Jodi Arias murder trial - Jodi Arias is expected to resume her testimony at her murder trial in Arizona.  She is accused of killing her ex-boyfriend, Travis Alexander, in 2008.

2:30 pm ET - Senate committee considers Hagel - The Senate Armed Services Committee will vote on Chuck Hagel's nomination to be defense secretary.  Following the vote, the nomination goes to the full Senate for consideration.

9:01 pm ET - 2013 State of the Union address - President Obama will address Congress and the nation from the chambers of the House of Representatives.  Following his speech, Sen. Marco Rubio will deliver, in both English and Spanish, the Republican response to Obama's address.  After that, Sen. Rand Paul will give the Tea Party Express response.

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