Here are three separate live threads to the rally. As of now, I do not think you need to sign up.
https://www.youtube.com/watch?v=xD1MXf2Nldk
https://www.youtube.com/watch?v=qnN5su9CxY4
http://wric.com/2016/02/24/donald-trump-will-speak-at-regent-university-in-virginia-beach-today/
Thanks Nikos!