Hurricane Sandy is causing problems up and down the U.S. East Coast.  Watch CNN.com Live for all the latest developments on the storm.

Today's programming highlights...

Continuing coverage - Hurricane Sandy tracker and briefings

11:50 am ET - Romney's battleground tour - GOP presidential candidate Mitt Romney campaigns in three battleground states today, beginning with a stop in Avon Lake, Ohio.  He'll also campaign in Davenport, Iowa, at 4:10 pm ET, and West Allis, Wisconsin, at 8:40 pm ET.

2:05 pm ET - Ryan in Florida - GOP vice presidential candidate Rep. Paul Ryan spends his day in Florida, beginning with a stop in Fernandina Beach.

3:30 pm ET - Biden campaigns with Clinton - With President Obama canceling his campaign schedule today due to Hurricane Sandy, Vice President Biden will stump for votes in his absence.  Biden will be joined by former president Bill Clinton at an event in Youngstown, Ohio.

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