Query for their name + "interviews" or "speeches".
Sort the results by "Upload Date" descending.
Display the first 20 results and then have a link over to YouTube for all results.
Here's an example search illustrating the idea. I read somewhere the free tier includes 10,000 credits per month and their quota calculator suggests the search functionality (videos => list) we'd need only costs one credit per query. So at no cost we could display this 10,000 times per month prior to hitting the limit but we'd need to run that to ground.
One idea we spoke about a while ago was to leverage something like the YouTube API (here's their documentation) to retrieve videos for each politician. Something like...
Here's an example search illustrating the idea. I read somewhere the free tier includes 10,000 credits per month and their quota calculator suggests the search functionality (videos => list) we'd need only costs one credit per query. So at no cost we could display this 10,000 times per month prior to hitting the limit but we'd need to run that to ground.