Tonight, Thursday, March 7th, is the State of the Union Address so lets keep everything related to it (including the Republican response) confined to this thread.
This is probably one of the most important speeches Biden can give this year. He has to come across as "Present", not just "President".
This will set the tone for the campaign the rest of the year and will be second only to the Democratic Convention speech in August for visibility.
I encourage you to watch the video and not just read the transcript. Reading it doesn't carry just how breathless and borderline weepy her delivery is.