You may find you don't initially get the breadth of information you want, so here are some tips for the example "Tariff News":
1) You search for Tariffs and summarize some videos but they were mostly about Canada and focused on very narrow topics over the last 24 hours.
2) TIP: Search again but this time use Canada as a negative keyword to spread out your search, then summarize some more videos.
3) You want a broader global and institutional viewpoint, so you use the search term "Global Tariff Impacts", then try things like "CEO responds to tariffs", "Tariff effects on American consumers", "Tariff effects on geopolitics", and so on.