In the US, reporting true things is literally never considered slander [0][1][2].
The legal system has recognized truth as a wholly adequate defense to claims of defamation (which includes slander) dating back to 1734 [3] - before the Constitution even written (1787).
--
[0] - "Under the United States law, a statement cannot be held to be actionable as slanderous or libellous if the statement is true but has "slight inaccuracies of expression", https://en.wikipedia.org/wiki/Substantial_truth