Edit
The speech was supposed to start at 3:40pm EST but it's been delayed. Maybe it'll start sometime after ~5pm.
Trump speech at CPAC: How can I watch live today? | The Independent
When is Donald Trump speaking?
Donald Trump will be the keynote speaker at the conference this year and will address the attendees in Orlando on Sunday afternoon.
Mr Trump is expected to take to the stage at around 3:40pm EST (8.40pm GMT) on Sunday, where he is rumoured to announce plans to run for president in 2024.
How to watch CPAC online:
All of the speeches will be live streamed on Independent TV, and on the CPAC 2021 website under the “Watch Live” tab, while certain high profile speeches are expected to be carried on a number of US networks, such as Fox News and CNN, throughout the weekend.
In the US, live streaming is also available as part of a subscription to Fox News’ streaming service, Fox Nation, which has exclusive access to CPAC 2021.
And there are always pirate streams. I don't want to miss a minute of the opening due to ads or other crap so I'll use Fox News. The sites also have CNN and MSNBC.
https://2ndrun.tv/fox-news/
https://watchnewslive.tv/fox-news-live-stream-usa/
https://usnewson.com/watch/fox-news-live-stream-usa
I miss watching Trump speeches on Livposting's stream with her bingo card.