It appears he was mocking Larry Kudlow.
“Yes, beer is plant-based — typically, malted grain, hops, yeast, water, and whatever other plant-based (non-meat, usually) ingredients a brewer dreams up to add. But Fox Business host Larry Kudlow, former President Donald Trump’s former White House economic adviser, used the phrase on his show Friday, when trying to paint President Biden’s proposed emissions cut as the ultimate July 4th spoiler.”
Thanks.