Carlton Turner applies for a certificate of appealability (“COA”) from the denial of his petition for writ of habeas corpus pursuant to 28 U.S.C. § 2254. Because he cannot make a substantial showing of the denial of a federal constitutional right, we deny a COA.
I.
The evidence presented at trial established that Turner shot and killed his parents in their home and placed the bodies in the garage. He confessed, and his claim of self-defense contradicted previous claims that he had nothing to do with the murders. A jury found him guilty of capital murder and sentenced him to death.
During voir dire, the prosecutor discussed with prospective jurors the issue of parole eligibility. During interviews with at least six prospects, after stating that the court would not allow the jury to consider parole eligibility in deciding punishment, the prosecutor speculated that parole con *295 sideration was barred because the legislature could change the parole laws at any time, thereby making it inapplicable to Turner. The prosecutor went on to attest that he had seen several parole law changes during his tenure. Turner’s trial counsel did not object.
In the sentencing phase, the court instructed the jury that Texas parole law required Turner to serve at least forty years before being eligible for parole, but that the jury was not to consider Turner’s parole eligibility in determining his sentence. The court did not speculate on whether the parole law might change.
Turner’s conviction was affirmed on direct appeal.
Turner v. State,
On appeal, Turner raises all seven issues asserted in the district court, seeking a COA. 1 First, he claims he was denied his right to a fair and impartial trial by the prosecutor’s statements. Second, he claims that he was denied his right to effective assistance of counsel when his lawyer failed to object to the prosecutor’s statements during voir dire. Third, he claims that the court’s instructions to the jury that it was not to consider parole eligibility deprived him of his right to a fair trial. Fourth, he asserts that the court’s instructions at sentencing contained vague and undefined terms that violated his right to a fair trial. Fifth, he claims that the Texas death penalty statute violates his right to a fair trial by not informing jurors that failure to reach a unanimous verdict on any issue will lead to life imprisonment. Sixth, he claims that the Dallas County venire selection process violates his right to an impartial jury containing a representative cross-section of the community. Seventh, he asserts that the cumulative effect of these violations denied him due process.
II.
In ruling on a request for a COA, we are constrained by statute. Absent a COA, we have no jurisdiction to entertain the merits of Turner’s claims on appeal.
Miller-El v. Cockrell,
“A petitioner satisfies this standard by demonstrating that jurists of reason could disagree with the district court’s resolution of his constitutional claim or that jurists could conclude the issues presented are adequate to deserve encouragement to proceed further.”
Miller-El,
III.
A.
Turner argues that the prosecutor’s statements to jurors during voir dire — which suggested that Turner might not serve forty years before becoming eligible for parole — were a violation of his rights under the due process clause of the Fifth Amendment. He relies on
Simmons v. South Carolina,
The district court rejected Turner’s claim, noting that the state habeas court had found that the factual basis for the claim was incorrect. The state habeas court found that the prosecution’s statements actually reinforced the instruction that Turner would serve at least forty years, and that the prosecutor confirmed to the jurors that the minimum period applied. State Hab. Find. Nos. 9, 22-23. On habeas review, federal courts must presume that the state court’s factual findings are correct, and Turner has not attempted to present clear and convincing evidence that the findings were erroneous. 3 Alternatively, the district court noted that the state habeas court had concluded that Simmons applies only in situations in which a defendant is statutorily ineligible for parole, and the district court found that this conclusion was not an unreasonable application of clearly established federal law as determined by the Supreme Court.
*297
In
Simmons,
a majority, in two separate plurality opinions, held that a defendant must be allowed to rebut a state’s showing of future dangerousness with accurate information regarding his ineligibility for parole, at least where the only alternative sentence is life without parole.
See Simmons,
Several years later the Court revisited the issue in the context of a defendant who was eligible for parole at the time of sentencing. In
Ramdass v. Angelone,
The state court found that Turner’s argument was not factually correct and that the prosecutor’s statement that the law might change merely confirmed the trial court’s instruction that Turner would not be released for forty years. Because Turner has not demonstrated that this factual finding is clearly erroneous, we deny a COA.
Alternatively, even if Turner could show that the state court’s finding was erroneous, he would need to demonstrate that the state court unreasonably applied clearly established federal law as determined by the Supreme Court. As discussed above, under the Supreme Court’s precedents, a defendant has a due process right to present parole eligibility to the jury only where he is not eligible for parole at the time of sentencing. The Court intended to limit
Simmons’
s application to states that allow sentences of life without parole.
See Green v. Johnson,
B.
Turner protests his attorney’s failure to object to the prosecutor’s statements. He reasons that under Texas law, see,
e.g., Valencia v. State,
The state habeas court found that Turner was unable to demonstrate ineffective assistance, because he was unable to show that his counsel’s objection would have been improperly overruled or that the prosecutor’s statement was an inappropriate explanation of the parole law instruction. State Hab. Find. No. 11. The court concluded that Turner’s counsel was not deficient for failing to proffer meritless objections to the statements.
*298 To succeed on a claim of ineffective assistance, a defendant must make two showings:
First, the defendant must show that counsel’s performance was deficient. This requires showing that counsel made errors so serious that counsel was not functioning as the “counsel” guaranteed the defendant by the Sixth Amendment. Second, the defendant must show that the deficient performance prejudiced the defense. This requires showing that counsel’s errors were so serious as to deprive the defendant of a fair trial, a trial whose result is reliable.
Strickland v. Washington,
To satisfy the first step of
Washington,
Turner must demonstrate that his counsel’s performance was deficient; he is unable to make that showing. For Turner’s counsel to be deficient in failing to object, the objection must have merit under Texas law. On direct appeal, the Texas Court of Criminal Appeals concluded, after reviewing several of the prosecutor’s comments, that Turner had quoted them “out of context” and that “we cannot say that counsel was ineffective for failing to object to the prosecutor’s voir dire comments since, viewed in the context of the entire voir dire,
they were not objectionable.” Turner v. State,
This is an authoritative statement from the state’s highest criminal court that Turner’s proposed objection would have been meritless. Turner’s counsel cannot have rendered ineffective assistance of counsel by failing to make an objection that would have been meritless. 4 Turner cannot make a substantial showing under Washington, so a COA on this issue is denied.
C.
Turner avers that the state trial court violated Simmons and his right to due process by informing jurors that they were not to consider the possibility of parole. Turner acknowledges that in Ram-dass the Court held that defendants who are eligible for parole have no due process right to a Simmons instruction informing the jury about the defendant’s ineligibility for parole. Nonetheless, Turner argues that in this case, where the state court did inform the jury that Turner would not be eligible for parole for forty years, it was a violation of due process and Simmons for the court then to inform the jury not to consider parole eligibility.
The state habeas court rejected this claim, finding that the protections of Simmons do not apply where a defendant is parole eligible and that Texas courts have long held that parole eligibility is not a matter for capital jury consideration. State Hab. Find. Nos. 75-76. The court also concluded that Turner could not show harm, because in deciding future dangerousness in Texas the jury is allowed to consider dangerousness to the prison population and thus parole eligibility is irrelevant. State Hab. Find. No. 82.
It is undisputed that the due process right to inform the jury about parole ineligibility recognized in Simmons does not apply where a defendant is eligible for *299 parole. 5 Simmons does not establish a right to inform the jury accurately about a defendant’s expected parole eligibility, but rather a right to inform that he is ineligible for parole. Turner is unable to make a substantial showing that the state habeas court’s conclusion was contrary to or an unreasonable application of clearly established federal law as determined by the Supreme Court, and a COA is denied.
D.
Turner urges that the jury instructions were unconstitutionally vague, depriving him of a fair trial, because they failed to define “probability,” “criminal acts of violence,” and “continuing threat to society.” The state habeas court rejected this challenge, noting that these terms apply not to the aggravating factors that determine death eligibility, but rather to the special punishment issues that determine whether the death penalty is appropriate. State Hab. Find. Nos. 91-92. The court cited several state cases that demonstrate that a refusal to define these terms poses no constitutional problems. 6
In
Tuilaepa v. California,
Turner claims that
Ring v. Arizona,
Texas capital juries make the eligibility decision at the guilt-innocence phase.
See, e.g., Johnson v. Texas,
E.
In this court, Turner has not briefed his claim that his Eighth Amendment and due process rights are violated by the Texas death penalty statute’s failure to inform jurors that the effect of a failure to reach a unanimous verdict is to impose life imprisonment. Instead, he concedes that this argument is squarely foreclosed by circuit precedent; he maintains it only to preserve the error for further review. 9 We deny a COA.
F.
Turner argues that the Dallas venire selection process disproportionately represented (1) Hispanics, (2) persons between the ages of 18 and 34, and (3) persons from households with incomes under $35,000. 10 Turner claims that he was prejudiced by the under-representation of these groups, which deprived him of a jury venire composed of a fair cross-section of the community.
The state habeas court found that Turner had failed to raise his venire objection at trial and therefore had waived the error for collateral review. State Hab. Find. Nos. 109-10 (citing
Ex Parte Dietzman,
With regard to the latter two categories, the court found that Turner had failed to demonstrate that they constitute distinctive groups in the community. State Hab. Find. Nos. 120-25. With regard to Hispanics, the court found that Turner had failed to demonstrate that there was a disparity between the percentage of Hispanics in the jury pool and the percentage of Hispanics who were eligible for jury service. State Hab. Find. No. 129. The court also found that Turner had failed to demonstrate that members of any of these groups were systematically excluded from jury service. State Hab. Find. Nos. 132-39.
The federal district court noted that the state court had determined that Turner’s claim was procedurally defaulted under Texas’s “contemporaneous objection” rule. The federal court found that the state habeas court had clearly and expressly declined to review Turner’s venire claim because of the procedural bar; the court noted that the rule is well established and applied evenhandedly by Texas courts. Therefore, the rule is an independent and adequate state ground for decision, precluding federal review. Because Turner failed to allege cause and prejudice in federal court, and there was no evidence suggesting that failure to consider the claims would result in a fundamental miscarriage of justice, the court found that Turner’s venire claim was procedurally defaulted.
*301
“When the district court denies a habeas petition on procedural grounds without reaching the prisoner’s underlying constitutional claim, a COA should issue when the prisoner shows, at least, that jurists of reason would find it debatable whether the petition states a valid claim of the denial of a constitutional right and that jurists of reason would find it debatable whether the district court was correct in its procedural ruling.”
Slack v. McDaniel,
Where a prisoner procedurally defaults his federal claim in the state habe-as court, federal habeas review is barred unless he can demonstrate cause and prejudice.
Coleman v. Thompson,
G.
Turner argues that the cumulative effect of the afore-mentioned constitutional violations denied him due process of law. “[F]ederal habeas corpus relief may only be granted for cumulative errors in the conduct of a state trial where (1) the individual errors involved matters of constitutional dimension rather than mere violations of state law; (2) the errors were not procedurally defaulted for habeas purposes; and (3) the errors ‘so infected the entire trial that the resulting conviction violates due process.’ ”
Derden v. McNeel,
Turner has failed to make a substantial showing of the denial of a federal constitutional right regarding his first four claims, and his final two claims are procedurally defaulted. Because he has pointed to no errors that involve matters of constitutional dimension and that are procedurally preserved for review, he has presented nothing to cumulate. A COA is denied.
In summary, Turner has not shown that any of his claims is debatable among jurists of reason, that a court could resolve them in a different manner, or that the questions are adequate to deserve encouragement to proceed further. Because he has failed to make a substantial showing of *302 the denial of a constitutional right, his request for a COA is DENIED.
Notes
. Throughout his briefing, Turner asserts that he "incorporates by reference the arguments previously made relevant to his claim in his brief in support of his original federal suit.” We do not consider issues that are not adequately briefed.
See, e.g., Summers v. Dretke,
.
See also Yarborough v. Gentry,
.
See Summers,
.
See Green,
.
See Ramdass,
. State Hab. Find. No. 93 (citing
Cantu v. State,
.
See also Buchanan v. Angelone,
.See, e.g., Hughes v. Johnson,
.
See Alexander v. Johnson,
. In support of this proposition, Turner cites a series of newspaper articles in the Dallas Morning News by Mark Curriden.
.
See Yohey v. Collins,
