Donald Trump will broaden his attack against the media to hit globalism and the Clinton Foundation by charging that Mexican billionaire Carlos Slim is part of a biased coalition working in collusion with the Clinton campaign and its supporters to generate news reports of decades-old allegations from several women…

“What they say is false and slanderous in virtually every respect,” he said at a rally in West Palm Beach, Fla., on Thursday, the day after the New York Times and other news outlets published accounts of women who said he had fondled or kissed them against their will.

As early as Friday, Mr. Trump is planning to claim that Mr. Slim, as a shareholder of New York Times Co. and donor to the Clinton Foundation, has an interest in helping Hillary Clinton’s campaign, according to a Trump adviser.

Attacking the Mexican billionaire would allow Mr. Trump to hit several targets. He could slam the “failing” New York Times, which he says had to be “rescued” by a “foreigner”—Mr. Slim, the adviser said.