Dr. Hector Ocaranza knew El Paso would see measles the moment it began spreading in West Texas and eastern New Mexico.

Mike Waltz is out as national security adviser in the first big shakeup in White House staff since Trump started his second term. Trump will nominate Waltz to serve as ambassador to the UN.

Australia heads to the polls on Saturday in an election overshadowed by President Trump. Will concerns over Trump's policies drive an outcome similar to what happened in Canada's elections?