What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Opinion:
REAGAN, PRESIDENT OF THE UNITED STATES, et al. v. ABOUREZK et al.
No. 86-656.
Argued October 5, 1987
Decided October 19, 1987
Deputy Solicitor General Wallace argued the cause for petitioners. With him on the briefs were Solicitor General Fried, Assistant Attorney General Willard, Roger Clegg, Michael Jay Singer, and Abraham D. Sofaer.
Steven R. Shapiro argued the cause for respondents. With him on the brief were Arthur N. Eisenberg, John A. Powell, Charles S. Sims, Peter L. Zimroth, Michael D. Young, and Leonard Boudin
Daniel J. Popeo and Paul D. Kamenar filed a brief for the Washington Legal Foundation et al. as amici curiae urging reversal.
Briefs of amici curiae urging affirmance were filed for the American Bar Association by Eugene C. Thomas, William A. Bradford, Jr., and David W. Burgett; for the Committee on Immigration and Nationality Law of the New York City Bar Association et al. by Robert M. Kaufman, Carl R. Baldwin, and Steven M. Freeman; for the International Human Rights Law Group by Eli Whitney Debevoise II and Kimberly Till; and for the Lawyers Committee for Human Rights et al. by Arthur C. Helton.
Ann H. Franke and Jacqueline W. Mintz filed a brief for the American Association of University Professors et al. as amici curiae.
Per Curiam.
The judgment below is affirmed by an equally divided Court.
Justice Blackmun took no part in the decision of this case. Justice Scalia took no part in the consideration or decision of this case.

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?

Choices:
stay, petition, or motion granted
affirmed (includes modified)
reversed
reversed and remanded
vacated and remanded
affirmed and reversed (or vacated) in part
affirmed and reversed (or vacated) in part and remanded
vacated
petition denied or appeal dismissed
certification to or from a lower court
no disposition

Answer: 1