Insinuations, accusations and speculations have been a staple of Donald Trump’s presidential campaign. Now Hillary Clinton is using the Republican nominee’s own methods against him.

In a new online advertisement, her campaign makes a few factual statements about Trump’s Russian sympathies, stretches the truth in a couple of ways and then invites readers to draw their own conclusions.

It is exactly the technique that Trump has used repeatedly throughout the campaign to feed conspiracy theories, said Joseph Uscinski, a political scientist at the University of Miami who studies conspiracy theories. The advertisement, which is titled “What Is Donald Trump’s Connection to Vladimir Putin?” and appeared online Friday, insinuates that Trump has some kind of business or political alliance with Russia’s president, Uscinski said.

“We don’t know what’s going on here, and Donald won’t tell us,” the spot concludes. “We’ll let you guess.”