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Hawaii Attorney General Douglas Chin, left, and Oregon Attorney General Ellen Rosenblum speak at a press conference outside the federal courthouse, Wednesday, March 15, 2107, in Honolulu. Hearings were scheduled Wednesday in Maryland, Washington state and Hawaii on President Donald Trump's travel ban. The lawsuit claims the ban harms Hawaii by highlighting the state's dependence on international travelers, its ethnic diversity and its welcoming reputation as the Aloha State. (AP Photo/Marco Garcia)

Hawaii Attorney General Douglas Chin flashes a Hawaii shaka before entering federal court, Wednesday, March 15, 2107, in Honolulu. Legal efforts to overturn President Donald Trump's travel ban will be held Wednesday in Hawaii. The lawsuit claims the ban harms Hawaii by highlighting the state's dependence on international travelers, its ethnic diversity and its welcoming reputation as the Aloha State. (AP Photo/Marco Garcia)

President Donald Trump speaks at the American Center of Mobility, Wednesday, March 15, 2017, in Ypsilanti Township, Mich. (AP Photo/Evan Vucci)

In this Monday, March 13, 2017 photo, people relax on the beach in Waikiki in Honolulu. Hawaii has filed a lawsuit challenging President Donald Trump's revised travel ban, saying the executive order could harm the state's strong tourist economy. (AP Photo/Caleb Jones)

FILE - In this Saturday, Jan. 28, 2017 file photo, President Donald Trump speaks on the telephone with Australian Prime Minister Malcolm Turnbull in the Oval Office of the White House in Washington. In the background is a portrait of former President Andrew Jackson which Trump had installed in the first few days of his administration. Jon Meacham, who wrote a 2008 biography of Jackson titled "American Lion,” said Trump has echoed Jackson's outsider message to rural America by pledging to be a voice for "forgotten men and women." But he says it's "not the cleanest analogy." (AP Photo/Alex Brandon, File)

FILE - In this Saturday, Jan. 28, 2017 file photo, President Donald Trump speaks on the telephone with Australian Prime Minister Malcolm Turnbull in the Oval Office of the White House in Washington. In the background is a portrait of former President Andrew Jackson which Trump had installed in the first few days of his administration. Jon Meacham, who wrote a 2008 biography of Jackson titled "American Lion,” said Trump has echoed Jackson's outsider message to rural America by pledging to be a voice for "forgotten men and women." But he says it's "not the cleanest analogy." (AP Photo/Alex Brandon, File)

Sen. Pat Toomey, R-Pa., left, and Sen. Tammy Duckworth, D-Ill., arrive at the Senate chamber on Capitol Hill in Washington, Wednesday, March, 15, 2017, for a vote to confirm former Indiana Sen. Dan Coats as director of national intelligence. (AP Photo/J. Scott Applewhite)

Security guards look on as firebrand anti-Islam lawmaker Geert Wilders, center, prepares to cast his vote for the Dutch general election in The Hague, Netherlands, Wednesday, March 15, 2017. (AP Photo/Peter Dejong)

FILE - In this Saturday, Jan. 28, 2017 file photo, President Donald Trump speaks on the telephone with Australian Prime Minister Malcolm Turnbull in the Oval Office of the White House in Washington. In the background is a portrait of former President Andrew Jackson which Trump had installed in the first few days of his administration. Jon Meacham, who wrote a 2008 biography of Jackson titled "American Lion,” said Trump has echoed Jackson's outsider message to rural America by pledging to be a voice for "forgotten men and women." But he says it's "not the cleanest analogy." (AP Photo/Alex Brandon, File)

FILE - In this Saturday, Jan. 28, 2017 file photo, President Donald Trump speaks on the telephone with Australian Prime Minister Malcolm Turnbull in the Oval Office of the White House in Washington. In the background is a portrait of former President Andrew Jackson which Trump had installed in the first few days of his administration. Jon Meacham, who wrote a 2008 biography of Jackson titled "American Lion,” said Trump has echoed Jackson's outsider message to rural America by pledging to be a voice for "forgotten men and women." But he says it's "not the cleanest analogy." (AP Photo/Alex Brandon, File)