MEMORANDUM OPINION
Before the court are defendants’ motions to dismiss the complaint and plaintiffs’ motion for a preliminary injunction. We grant defendants’ motions and deny plaintiffs’ motion for the reasons explained below.
BACKGROUND
The facts alleged in plaintiffs’ complaint, which we accept as true for the purposes of defendants’ motions, are mostly matters of public record. On November 16, 2008, then-President Elect Obama resigned his Senate seat, creating a vacancy that former-Illinois Governor Rod Blagojevich filled by executive order appointing defendant Roland Burris. (See Certificate of Appointment, dated December 31, 2008, attached as Ex. A to Pis.’ Mem. in Supp. of Mot. for Prelim. Inj. (hereinafter, “PI. Mem.”).) 1 The Certificate of Appointment provides that Senator Burris will serve until the seat is “filled by election as provided by law.” (Id.) Under Illinois’s Election Code, that election will be held at the next general congressional election in November 2010. See Illinois Election Code, 10 ILCS § 5/25-8. Plaintiffs, registered Illinois voters who intend to vote in the vacancy election, contend that the Seventeenth Amendment requires Governor Quinn to call a special election well in advance of that date. They have filed a two-count complaint, pursuant to 42 U.S.C. § 1983 and 28 U.S.C. §§ 2201-02, asking us to (i) declare that § 25-8 is unconstitutional, and (ii) require Governor Quinn to “issue a writ for a special election to be conducted as soon as practical.” (First Am. Compl. at 6-7.) We denied Senator Burris’s request to appear as amicus curiae because we concluded that he must be joined as a party under Fed.R.Civ.P. 19. (See Order of Mar. 11, 2009.) 2 Plaintiffs have amended their complaint to join him as a defendant, and the parties’ motions are now fully briefed. 3
DISCUSSION
A. Whether the State is Prohibited from Conducting a Vacancy Election on a Date Other Than November 2, 2010.
Senator Burris argues that federal statutes prohibit the state from conducting a vacancy election on any date except November 2, 2010. Because this is an ostensibly non-constitutional basis for denying at least one facet of plaintiffs’ claims, we address it first.
See Rehman v. Gonzales,
*936 B. The Seventeenth Amendment and Illinois’s Vacancy Statute
Before the states ratified the Seventeenth Amendment in 1913, United States Senators were appointed by state legislatures. See Laura A. Little, An Excursion Into the Uncharted Waters of the Seventeenth Amendment, 64 Temp. L.Rev. 629, 632 (1991). The Seventeenth Amendment eliminated that practice, providing for direct elections and prescribing the procedure for filling vacancies:
When vacancies happen in the representation of any State in the Senate, the executive authority of such State shall issue writs of election to fill such vacancies: Provided, That the legislature of any State may empower the executive thereof to make temporary appointments until the people fill the vacancies by election as the legislature may direct.
U.S. Const, amend. XVII. Illinois, pursuant to the proviso, enacted the following vacancy statute soon after the states ratified the Seventeenth Amendment:
When a vacancy shall occur in the office of United States Senator from this state, the Governor shall make temporary appointment to fill such vacancy until the next election of representatives in Congress, at which time such vacancy shall be filled by election, and the senator so elected shall take office as soon thereafter as he shall receive his certificate of election.
10 ILCS § 5/25-8 (emphasis added). Plaintiffs contend that this statute is unconstitutional because it usurps the governor’s duty to call a special election, authorizes an impermissibly long period of time between the vacancy and the election, and compels (rather than “empowers”) the governor to make a temporary appointment in the interim.
7
They rely in part on cases construing Article I, § 2, cl. 4, which governs the procedure for filling vacancies in the United States House of Representatives and contains language nearly identical to the Seventeenth Amendment’s “writs-of-eleetion” clause.
See
U.S. Const, art. I, § 2, cl. 4 (“When vacancies happen in the Representation from any State, the Executive Authority shall issue Writs of Election to fill such Vacancies.”);
Jackson
*937
v. Ogilvie,
C. Valenti v. Rockefeller
Both parties acknowledge that
Valenti v. Rockefeller
is central to this case. In
Valenti,
a three-judge district court concluded that a New York statute similar to § 25-8 was constitutional,
Plaintiffs insist that the Supreme Court’s summary affirmance in
Valenti
has “limited precedential force.”
See Illinois State Board of Elections v. Socialist Workers Party,
We are not persuaded that
Valenti
affirmed the district court’s judgment on mootness grounds,
10
and contrary to what plaintiffs seemed to suggest in their open
*939
ing brief, we are not writing on a blank slate. The Court revisited
Valenti
in
Rodriguez v. Popular Democratic Party,
Valenti, of course, unlike this case, involved an interpretation of the Seventeenth Amendment, which explicitly outlines the procedures for filling vacancies in the United States Senate. See n. 7, supra. However, the fact that the Seventeenth Amendment permits a state, if it chooses, to forego a special election in favor of a temporary appointment to the United States Senate suggests that a state is not constitutionally prohibited from exercising similar latitude with regard to vacancies in its own legislature.
Id.
Our Court of Appeals relied on this same language in a case decided shortly after
Rodriguez
upholding a comparable provision applying to aldermanic vacancies.
See Lynch v. Ill. State Board of Elections,
Although the
Rodriguez
Court discussed
Valenti
in dicta, we cannot lightly disregard the Supreme Court’s “considered” statements.
See United States v. Bloom,
Because the vacancy in this case arose shortly after President Obama’s election on November 4, 2008, nearly two years will elapse before the vacancy is filled by election. This is nearly the longest delay that § 25-8 permits, and still it is well within the period that
Valenti
allowed. Moreover, the principle that it is more efficient and economical to conduct multiple elections on the same date remains sound.
See Lynch,
Applying Valenti and Rodriguez, we conclude that § 25/8 does not violate plaintiffs’ right under the Seventeenth Amendment to vote in the direct election of their Senator. Accordingly, they are not entitled to a declaratory judgment to the contrary. And because the allegations in their First Amended Complaint do not state a constitutional violation, plaintiffs are not entitled to injunctive relief under § 1983. Defendants’ motions to dismiss are granted.
CONCLUSION
Governor Quinn’s motion to dismiss (19), and Senator Burris’s motion to dismiss (23), are granted. The complaint is dismissed. Plaintiffs’ motion for a preliminary injunction (14) is denied. Plaintiffs are given until May 1, 2009 to file an amended complaint. 11 If they do not do so, this cause will be dismissed with prejudice.
Notes
. Senator Burris was sworn in as a United States Senator for the State of Illinois on January 15, 2009.
. Senator Burris's amicus-curiae motion, which joins Governor Quinn’s motion to dismiss with one exception discussed below, stands as his motion to dismiss.
. We have jurisdiction under 28 U.S.C. §§ 1331 and 1343(a)(3), and we concur with the parties’ apparent agreement that plaintiffs have standing.
See Valenti v. Rockefeller,
. Section 8 provides, with an exception that does not apply in this case:
[T]he time for holding elections in any State, District, or Territory for a Representative or Delegate to fill a vacancy, whether such vacancy is caused by a failure to elect at the time prescribed by law, or by the death, resignation, or incapacity of a person elected, may be prescribed by the laws of the several States and Territories respectively.
See 2 U.S.C. § 8.
. See
also Trinsey v. Commonwealth of Pennsylvania,
.Senator Burris argues for the first time in his reply brief that pursuant to Article I, § 5 of the Constitution only the Senate can "de
*936
termine whether a special election is appropriate to curtail his present tenure.”
See
U.S. Const, art. I, § 5 ("Each House shall be the Judge of the Elections, Returns and Qualifications of its own Members .... ”). Arguments raised for the first time in a reply brief are waived.
See United States v. Diaz,
. Plaintiffs raised this last objection, which appears to be an issue of first impression, in what was effectively their reply brief supporting their preliminary-injunction motion. It is an entirely new and separate claim challenging Senator Burris's appointment, not the vacancy election's timing. And like Senator Burris’s untimely argument, supra n. 6, plaintiffs' new claim may raise significant standing and justiciability issues. These issues are undeveloped, at best, and defendants have not had an opportunity to be heard. If plaintiffs wish to pursue this claim in light of today’s ruling, they should file an amended complaint. For purposes of the pending motions, we address only the operative complaint in this case.
. In their supplemental memorandum plaintiffs argue that
Valenti
did not decide which branch of state government is authorized to set the date for the vacancy election. They point out that Governor Rockefeller issued a writ of election and they insist that he, not New York's legislature, scheduled the election for November 1970. (See Mot. on Behalf of Appellee to Dismiss or Affirm, attached as Ex. H to Pl.’s Supp. Mem. in Support of its Mot. for Prelim. Inj., at 6.) We disagree with plaintiffs' contention that
Valenti
did not address the “who-decides-the-date” issue. November 1970 was the date dictated by the statute pursuant to which Governor Rockefeller appointed Senator Kennedy’s replacement.
See Valenti,
. The three-judge panel in Valenti conceded that it could not, as a practical matter, grant plaintiffs this relief given the lawsuit’s timing, id. at 855 n. 6, but concluded that this did not moot the case. Id. at 855 (considering whether New York was prohibited from “bypassing its general election in 1969 in favor of filling the vacancy in November 1970’’).
. Neither side has cited any facts or authority that would enable us to meaningfully assess whether Governor Rockefeller's mootness argument was a plausible ground for affirmance. But if, as Governor Rockefeller argued, the plaintiff was constrained by the relief he had requested in his complaint
(cf.
Fed.R. Civ. P. 54(c)), then the case was moot when the lower court rendered its decision. In that case, the Court likely would have dismissed the appeal and vacated, not affirmed, the lower court's judgment.
See Amalgamated Ass’n of St., Elec. Ry. & Motor Coach Emp. of America, Division 998 v. Wisconsin Employment Relations Board,
. See supra n. 7.
