As protests continue in Los Angeles, hundreds of U.S. Marines have been deployed to the city as President Donald Trump and Governor Gavin Newsom spar over law enforcement response.

A cross-border sewage crisis affecting Southern California could play a role in a prominent congressional race, where a Republican challenger has become a national figure on the issue.

U.S. President Donald Trump said on Monday he would support the arrest of California Governor Gavin Newsom over possible obstruction of his administration's immigration enforcement measures, amid protests in the state.

Trump has packed detention centers with immigrants and is sending the National Guard troops to LA to crack down on those protesting the detentions.

The Trump administration’s increasingly aggressive moves on immigration are pulling Democrats back into a border security debate they had tried to ignore. For months, Democrats scarred by the politics of the issue sought to sidestep President Donald Trump’s immigration wars — focusing instead on the economy,

The president is deploying 2,000 troops to Los Angeles, where protests Saturday led to clashes between immigration authorities and demonstrators, despite Gov. Gavin Newsom's objections.

The situation has all the elements that the president seeks: a showdown with a top political rival in a deep blue state over an issue core to his agenda.