California Democrats may have successfully muscled a new congressional map through the state legislature this week, but the redistricting fight in the Golden State is only just beginning.

The two most populous states are in a political battle poised to have a major impact on the balance of power in Washington DC.

California Gov. Gavin Newsom is confident his redistricting plan to counter the Texas legislature's redistricting plan will be approved by voters in November. Lauren Toms reports on the start of the campaign.