These are not phony accusations, the evidence has been clearly presented, Trump knows it and so does everyone who has actually listened to the previous testimony. Seventeen witnesses have testified and have direct evidence. As I type this, a Repub is asking about the whistleblower, which has no relevance.
There is nothing new in these hearings, they just have to take place to as a matter of procedure.
Trump will be impeached, but he won't be convicted because the Republicans are protecting him and themselves and I guess they hope no one will notice. It's perfectly clear.
I think all of this will go a long way in defeating Trump in 2020.