Just so you know, if you're using Windows, you can use Notepad++ (third party program) to quickly reformat text like this.

Paste it into a blank document and choose Edit> Convert Case > Sentence case.

Here's my output (just had to recapitalize Hillary and Matt Lauer)-

Since Hillary does not allow any staff to have cell phones when she is in their presence, no footage is available, but Hillary will never let this rest. She has made it clear that she wants Matt Lauer to be “persona non grata – for putting her on the spot.”

It took much longer to write my tutorial than to perform those steps. It maybe took 10 seconds total.