Well, first it means she is the second guilty plea in the case, which is horrible news for the other defendants including Trump. She is now going to testify to the fact that they were working to steal the election, they had a plan to do this, and Trump himself was overseeing that plan. Remember she was one of Trump's lead advisors in this scheme and was brought into the Oval office by Trump to commit fraud on the American public. 

This is now going to lead to several other defendants pleading guilty and admitting to the crimes they committed for and at the behest of Donald Trump. Wherever Donald is today you can be certain he is having a tantrum and there is ketchup all over the walls. 

Now, anybody that understands this should see Donald Trump as a criminal that orchestrated a scheme to steal a US election...two people have already plead guilty and they were not committing these crimes to help themselves, they committed them for and to help Donald Trump.

Powell is going to testify in open court now about what she did, saw, and was told to do. There is no hiding at this stage. 

I don't expect any of this to change the view of any hardcore MAGA nuts but to those with a brain and the ability to reason...well...we have the evidence and guilty pleas that show there were crimes committed and this scheme to steal a US election and defraud the public. 

The fat lady may not be singing yet but she is warming up.