This is the @jaketapper clip people were upset about, singling out Hillary Clinton for criticism during the Chauvin verdict watch.

It's not true that Hillary didn't know what BLM was when she was first asked about it - she said "Black Lives Matter" in a 2014 speech https://twitter.com/tommyxtopher/status/1296848089999904776

She did get criticized for saying "all lives matter" during a 2015 speech, the context of which you can read here: https://www.npr.org/sections/itsallpolitics/2015/06/24/417112956/hillary-clintons-three-word-gaffe-all-lives-matter

She also said "Black lives matter" in that same speech.

Also, BLM started in 2013 after Trayvon Martin's killer went free, but according to internet archive, it was not mentioned on a national newscast until after Ferguson.

Hillary was not ignorant of BLM, but a lot of Democrats were ignorant - if only for a second - about "All lives matter."

They were quickly educated.

This was Bernie Sanders being asked about Hillary Clinton and "all lives matter," and whether he would say Black Lives Matter:

"Phraseology. Of course I would use that phrase. Black lives matter, white lives matter, Hispanic lives matter." (6/24/15)

https://www.npr.org/sections/itsallpolitics/2015/06/24/417180805/bernie-sanders-walks-a-fine-line-on-gun-control

And here's Tapper reporting on Martin O'Malley getting booed for saying “Black lives matter. White lives matter. All lives matter,”

To @donnabrazile "Can you explain why people would be mad at someone saying All Lives Matter?"