20 MCCUTCHEON v. FEDERAL ELECTION COMM’N Opinion of ROBERTS, C. J. It is fair to say, as Justice Stevens has, “that we have not always spoken about corruption in a clear or consistent voice.” Id., at 447 (opinion concurring in part and dissenting in part). The definition of corruption that we apply today, however, has firm roots in Buckley itself. The Court in that case upheld base contribution limits because they targeted “the danger of actual quid pro quo arrangements” and “the impact of the appearance of corruption stemming from public awareness” of such a system of unchecked direct contributions. 424 U. S., at 27. Buckley simultaneously rejected limits on spending that was less likely to “be given as a quid pro quo for improper commitments from the candidate.” Id., at 47. In any event, this case is not the first in which the debate over the proper breadth of the Government’s anticorruption interest has been engaged. Compare Citizens United, 558 U. S., at 356–361 (majority opinion), with id., at 447–460 (opinion of Stevens, J.). The line between quid pro quo corruption and general influence may seem vague at times, but the distinction must be respected in order to safeguard basic First Amendment rights. In addition, “[i]n drawing that line, the First Amendment requires us to err on the side of protecting political speech rather than suppressing it.” Federal Election Comm’n v. Wisconsin Right to Life, 551 U. S. 449, 457 (2007) (opinion of ROBERTS, C. J.). The dissent laments that our opinion leaves only remnants of FECA and BCRA that are inadequate to combat corruption. See post, at 2. Such rhetoric ignores the fact that we leave the base limits undisturbed.6 Those base —————— 6 The fact that this opinion does not address the base limits also belies the dissent’s concern that we have silently overruled the Court’s holding in McConnell v. Federal Election Comm’n, 540 U. S. 93 (2003). See post, at 12–13. At issue in McConnell was BCRA’s extension of the base limits to so-called “soft money”—previously unregulated contributions to national party committees. See 540 U. S., at 142; see also post,

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