Ducking a new case on the divisive issue of campaign finance, the U.S. Supreme Court on Monday rejected a challenge to an Iowa law that bans corporate contributions in state elections.

The court declined to take up the case just days after it issued a 5-4 ruling lifting limits on the aggregate amount individual donors can give in federal elections.

By opting not to hear the case, the court left intact an 8th U.S. Circuit Court of Appeals ruling from June 2013 that upheld the ban. By so doing, the court indicated it was unwilling at least for now to press ahead with any further deregulation of campaign finance following the 5-4 ruling on Wednesday in McCutcheon v. Federal Election Commission.