WASHINGTON - California will "imminently" challenge President Donald Trump's declaration of a national emergency to obtain funds for a U.S.-Mexico border wall, state Attorney General Xavier Becerra said on Sunday. "Definitely and imminently," Becerra told ABC's "This Week" program when asked whether and when California would sue the Trump administration in federal court. Other states controlled by Democrats are expected to join the effort. "We are prepared, we knew something like this might happen. And with our sister state partners, we are ready to go," he said.