Watch: http://mikenormaneconomics.blogspot.com/2023/04/maga-25-trillion-of-interest-payments.html
I haven't watched the video. We will have $2.5 trillion of interest annually starting in 2040, maybe the video says it is sooner.
I think that even $1 trillion per year of interest is a big problem, and this should start in fiscal year 2029.
Update: I finally watched it. The $2.5 trillion comes from a $50 trillion national debt * 5% interest. Dave Brat said the CBO scored the budget deal at $50 trillion in 10 years. I can't find that number but it looks like the debt held by the public could be $46.7 trillion in 2033 (GDP of 39,288 * 118.9%). So by 2035, the debt held by the public will be over $50 trillion. The CBO projects lower interest than that, with $1.44 trillion in 2033, but maybe they are underestimating the rates. I think Dave is saying that the debt to the public will be higher than projected, and will reach $50 trillion by 2033. And if interest is slightly higher than projected, you get the $2.5 trillion annually by 2033.