"Microsoft joins Amazon in lawsuit over Trump's immigration ban", 30 Jan 2017

...Washington Attorney General Bob Ferguson filed a lawsuit today against Trump’s order, which bars legal immigrants and refugees from seven majority-Muslim countries from entering the US and bans Syrian refugees indefinitely.  Now, at least three tech companies — Microsoft, Amazon, and Expedia — are joining that legal fight...Both Amazon and Expedia are also preparing statements that demonstrate the order’s negative impact on their business.  In an email to employees, Amazon CEO Jeff Bezos wrote that the company’s legal team "has prepared a declaration of support for the Washington State Attorney General who will be filing suit against the order." They are considering other legal options, as well. Expedia hasn’t publicly released its statement but Ferguson cited the company’s help in a press release...The lawsuit will attempt to prove the immigration ban is unconstitutional...Other tech company executives, ranging from Tesla CEO Elon Musk to Facebook chief Mark Zuckerberg, have spoken out against the order.  Yet only Amazon, Microsoft, and Expedia — all of which are based in the Seattle area in Washington — are in a position to support this particular legal challenge to the immigration ban, at least until more lawsuits begin popping up around the country.