Passengers wait to board an Amtrak train at a station in Emeryville, Calif., Thursday, April 30, 2026. (AP Photo/Jeff Chiu)

An Amtrak train leaves a station in Emeryville, Calif., Thursday, April 30, 2026. (AP Photo/Jeff Chiu)

A passenger waits to board an Amtrak train at a station in Emeryville, Calif., Thursday, April 30, 2026. (AP Photo/Jeff Chiu)

A passenger sits aboard an Amtrak train at Union Station in Los Angeles, Thursday, April 30, 2026. (AP Photo/Jae C. Hong)

Passengers deboard an Amtrak train at Union Station in Los Angeles, Thursday, April 30, 2026. (AP Photo/Jae C. Hong)

FILE - A view of the United States Coast Guard headquarters building in Washington, June 21, 2019. (AP Photo/Susan Walsh, File)

Adam Hamilton, a Methodist mega-church pastor from Kansas, talks to voters as he wraps up a U.S. Senate listening tour on Saturday, April 18, 2026, at Limitless Brewing in Lenexa, Kansas. (AP Photo/Heather Hollingsworth)

Adam Hamilton, a Methodist mega-church pastor from Kansas, talks to voters as he wraps up a U.S. Senate listening tour on Saturday, April 18, 2026, at Limitless Brewing in Lenexa, Kansas. (AP Photo/Heather Hollingsworth)