One of President Donald Trump’s top economic advisers tried to defend Wednesday the White House looking into regulating Google, but he didn’t provide any further explanation for how that would get done.

“Well, first, there are independent agencies that look into this all the time,” said Kevin Hassett, chairman of the White House Council of Economic Advisers, during an interview on Fox Business Network.

“And it’s our job at the White House, really, to be looking at the 21st century economy, not the 20th century economy, right? Like, so we can’t be just really good at buggy whips, we’ve got to think about what’s going on right now.”

Hassett said Internet search engines, such as Google’s, are “a really, really interesting thing because they have these search algorithms, basically care more if somebody important links to a page than if somebody unimportant links to a page.”

He said that “mainstream media” news about Trump may automatically get more hits in a search than other sources or “it could be that it’s something else,” Hassett said on FoX’s “Mornings with Maria” show.

Trump and some of his Republican allies in Congress have charged that social media companies are biased against conservatives.

“And the question is, that in a 21st century economy, you know, what is the right of the American government in this space? What should we be looking at? And I think that it’s right for us to think about those things,” Hassett said.

Hassett’s comments came a day after Larry Kudlow, the president’s top economic adviser, told reporters that the administration is “taking a look” at regulating Google. So far, no one at the White House has given any details about what those regulations might look like.