He has every right to chose whomever he wants as ambassador.
This dinner was April 30, 2018, she was fired in May 2019. What took so long?
He had no right to besmirch her.
Now lets address the group Trump was dining with, why were these men (the ones Trump said he doesn't know) giving their opinion on her & Ukraine?
If you heard more of this, Trump asked how long would Ukraine survive against Russia without the aide of the USA, Lev said not long. I'm paraphrasing.
So Trump knew a year before how crucial the monies were to Ukraine.
That IMO is a bigger issue.
And, who is suppose to protect the president from people taping his conversations???
That is another huge problem.
This is what happens when people contributing money are allowed to get close to Trump.
He's an easy mark, and that puts OUR COUNTRY at RISK!