This case involves review of a preliminary injunction prohibiting — on fourteenth amendment grounds — enforcement, until completion of a full trial to be held in the future, of a city ordinance that allocates a portion of municipal contracting dollars to businesses owned or controlled by members of minority groups. The ordinance, in pertinent part, sets aside ten percent of the amount appropriated by the City of Jacksonville for capital improvements and other construction contracts to be awarded to Minority Business Enterprises (MBEs). MBEs are enterprises which are more than fifty percent owned by women or members of designated minority groups. Plaintiff is a trade association; most of its members are not MBEs. Although we too question the ordinance’s constitutionality, we reverse the grant of preliminary injunction because we believe that the district court abused its discretion in imposing such a drastic remedy in the circumstances and on the limited record before the court.
A preliminary injunction is a powerful exercise of judicial authority in advance of trial. The chief function of a preliminary injunction is to preserve the status quo until the merits of the controversy can be fully and fairly adjudicated. Amer. Radio Ass’n v. Mobile Steamship Ass’n, Inc., 483 F.2d 1, 4 (5th Cir.1973)1, Since 1984, the status quo in Jacksonville has been the existence of a municipal set-aside program. To justify a preliminary injunction, the plaintiff must plainly establish four preconditions: (1) a substantial likelihood that plaintiff will prevail on the merits, (2) a showing that plaintiff will suffer irreparable injury if an injunction does not issue, (3) proof that the threatened injury to plaintiff outweighs any harm that might result to the defendants, and (4) a showing that the public interest will not be disserved by grant of a preliminary injunction. Cunningham v. Adams, 808 F.2d 815, 819 *1285(11th Cir.1987); Johnson v. United States Dep’t of Agric., 734 F.2d 774, 781 (11th Cir.1984). “The preliminary injunction is an extraordinary and drastic remedy not to be granted until the movant ‘clearly carries the burden of persuasion’ as to the four prerequisites. ‘The burden of persuasion in all of the four requirements is at all times upon the plaintiff.’ ” United States v. Jefferson County, 720 F.2d 1511, 1519 (11th Cir.1983) (quoting Canal Authority of State of Florida v. Callaway, 489 F.2d 567, 573 (5th Cir.1974)); accord Cunningham, 808 F.2d at 819; Zardui-Quintana v. Richard, 768 F.2d 1213, 1216 (11th Cir.1985).
In this country, democracy in government is, of course, viewed as a good and normal thing. When a federal court before trial enjoins the enforcement of a municipal ordinance adopted by a duly elected city council, the court overrules the decision of the elected representatives of the people and, thus, in a sense interferes with the processes of democratic government. Such a step can occasionally be justified by the Constitution (itself the highest product of democratic processes). Still, preliminary injunctions of legislative enactments—because they interfere with the democratic process and lack the safeguards against abuse or error that come with a full trial on the merits—must be granted reluctantly and only upon a clear showing that the injunction before trial is definitely demanded by the Constitution and by the other strict legal and equitable principles that restrain courts.
The district court found for plaintiff on each of the four preconditions for a preliminary injunction. We need not address each element because we conclude that no showing of irreparable injury was made. The plaintiffs “success in establishing a likelihood it will prevail on the merits does not obviate the necessity to show irreparable harm.” United States v. Lambert, 695 F.2d 536, 540 (11th Cir.1983) (affirming denial of preliminary injunction in environmental case); accord Jefferson County, 720 F.2d at 1520 n. 21.
“The basis of injunctive relief in the federal courts has always been irreparable harm and inadequacy of legal remedies.” Sampson v. Murray, 415 U.S. 61, 88, 94 S.Ct. 937, 952, 39 L.Ed.2d 166 (1974). A showing of irreparable harm is “the sine qua non of injunctive relief.” Frejlach v. Butler, 573 F.2d 1026, 1027 (8th Cir.1978). The injury must be “neither remote nor speculative, but actual and imminent”. Tucker Anthony Realty Corp. v. Schlesinger, 888 F.2d 969, 973 (2d Cir.1989). An injury is “irreparable” only if it cannot be undone through monetary remedies. “The key word in this consideration is irreparable. Mere injuries, however substantial, in terms of money, time and energy necessarily expended in the absence of a stay, are not enough. The possibility that adequate compensatory or other corrective relief will be available at a later date, in the ordinary course of litigation, weighs heavily against a claim of irreparable harm.” Sampson, 415 U.S. at 90, 94 S.Ct. at 953; accord Jefferson County, 720 F.2d at 1520.
The district court found that “a continuation of the MBE programs [would] result in an on-going violation of Plaintiffs’ constitutional rights [which] ... by itself, is sufficient to show irreparable injury to the Plaintiffs.” Order at 7. This is incorrect.
No authority from the Supreme Court or the Eleventh Circuit has been cited to us for the proposition that the irreparable injury needed for a preliminary injunction can properly be presumed from a substantially likely equal protection violation. In this case, no witnesses or other evidence was submitted on the issue of irreparable injury. The only area of constitutional jurisprudence where we have said that an on-going violation constitutes irreparable injury is the area of first amendment and right of privacy jurisprudence. See, e.g., Cate v. Oldham, 707 F.2d 1176, 1189 (11th Cir.1983); Deerfield Medical Center v. City of Deerfield Beach, 661 F.2d 328, 338 (5th Cir.1981). The rationale behind these decisions was that chilled free speech and invasions of privacy, because of their intangible nature, could not be compensated for by monetary damages; in other words, plaintiffs could not be made whole. The *1286facts of this case do not fit the rationale of these decisions. This case involves neither a first amendment nor a right of privacy-claim; and the damage to plaintiff here is chiefly, if not completely, economic.
Cunningham v. Adams, 808 F.2d 815 (11th Cir.1987), concerned a claim of governmental racial discrimination in awarding contracts and a request for a preliminary injunction by the plaintiff. We concluded in Cunningham that, when the plaintiffs ultimate injury is that contracts will be awarded to someone else, plaintiff has failed to make a showing of irreparable injury. 808 F.2d at 821-22. As in Cunningham, if plaintiff is successful here, the court can direct the City to award municipal contracts to plaintiffs members who would have successfully bid for contracts in the absence of the set-aside program. Moreover, the City can award lost profits or other monetary damages to compensate a contractor that has been wrongfully denied a contract.
The district court also said that “financial hardship with difficult damage calculations may occur to the Plaintiffs if these programs continue to be implemented during the pendency of this lawsuit.” Order at 7 (emphasis added). Nothing in the record, apart from a conclusory allegation of “irreparable harm” in the verified complaint and an assertion of speculative economic injury by plaintiffs counsel at the injunction hearing, supports the judge’s finding of irreparable injury. Conjecture about a possibility of difficulties with damage computations is inadequate to support an injunction before trial. Because plaintiff presented no evidence on the issue, we cannot agree that irreparable injury is “apparent”. In addition, that difficult damage calculations “may” occur is not enough. See Sampson, 415 U.S. at 88-89, 94 S.Ct. at 951-52. Furthermore, because no evidence was received, we may review the district court’s observations on a clean slate and reach our own assessment of the nature of the injury. See Mayo v. Lakeland Highlands Canning Co., 309 U.S. 310, 316, 60 S.Ct. 517, 520, 84 L.Ed. 774 (1940) (“The observations made in the course of the [trial court] opinion are not, in any proper sense, findings of fact upon these vital issues [irreparable injury]. Statements of fact are mingled with arguments and inferences for which we find no sufficient basis either in the affidavits or the oral testimony.”).
The plaintiff association failed to bring forth representatives who could assert injury from the set-aside program. An association which gains standing by virtue of its membership cannot hide behind the associational structure. We expect that nonminority contractors can, by taking reasonable steps, quantify their claims for the purpose of seeking monetary relief from the City if a nonminority contractor has been improperly rejected in favor of a minority contractor. Put differently, that persons injured by the set-aside program cannot obtain adequate relief by money damages and injunc-tive relief following a full trial is — from the record in this case — unclear. We conclude that plaintiff has failed to demonstrate irreparable injury entitling it to preliminary injunctive relief.
After Richmond v. J.A. Croson,2 - U.S. -, 109 S.Ct. 706, 102 L.Ed.2d 854 (1989), we admit to doubts about whether the Jacksonville set-aside program can survive the strict scrutiny required by the Supreme Court. Nevertheless, keeping in mind the deference due to laws enacted by democratically elected local governments, we believe that the district court should have developed a more complete record on which to evaluate the circumstances in which the Jacksonville ordinance was passed and the consequences of immediate judicial action in advance of a full and fair trial. The present record is inadequate— especially on irreparable injury — to warrant the extraordinary remedy of preliminary injunction. Because no necessity for an injunction has been shown, we REVERSE the issuance of a preliminary injunction and REMAND for an expedited trial or other disposition on the merits.
. In Bonner v. City of Prichard, 661 F.2d 1206, 1209 (11th Cir.1981) (e« banc), this court adopted as precedent all decisions of the former Fifth Circuit decided prior to October 7, 1981.
. Croson was not a preliminary injunction case.