Supporters of Shaima Swileh hold up signs as they await her arrival at San Francisco International Airport in San Francisco, Wednesday, Dec. 19, 2018. Swileh is the Yemeni mother who won her fight for a waiver from the Trump administration's travel ban that would allow her to go to California to see her dying 2-year-old son. (Photos: AP)

Shaima Swileh, right, stands with her husband Ali Hassan after Swileh arrived at San Francisco International Airport in San Francisco, Wednesday, Dec. 19, 2018. Swileh is the Yemeni mother who won her fight for a waiver from the Trump administration's travel ban that would allow her to go to California to see her dying 2-year-old son.

Shaima Swileh, center with her back turned, is greeted by supporters after arriving at San Francisco International Airport in San Francisco, Wednesday, Dec. 19, 2018. Swileh is the Yemeni mother who won her fight for a waiver from the Trump administration's travel ban that would allow her to go to California to see her dying 2-year-old son.