The Supreme Court ruled Wednesday in favor of a lower court motion to temporarily exempt travelers with family members already in the U.S., such as grandparents, cousins and other relatives, from Trump's travel ban. SCOTUS gave Trump a partial victory by blocking a San Francisco court's decision that would have exempted thousands of refugees from the ban.

Why it partially matters: The Supreme Court will review arguments in the case when the justices return from summer recess in October. All of their interim decisions are only temporary.

Refresher: On June 26, SCOTUS allowed Trump's 90-day ban to go into effect for travelers from six Muslim-majority countries who lack any "bona fide relationship with any person or entity" in the U.S. The administration soon after issued guidelines clarifying that a parent, spouse, fiance, son or daughter, siblings, son-in-law or daughter-in-law would be allowed to enter the country, but grandparents, grandchildren, aunts, uncles, nieces, nephews, cousins, or siblings-in-laws would be banned.