He has caused a great deal of harm to our reputation abroad, he has given recognition as equals to brutal dictators, he has equivocated that the actions that the US has taken are not any better than that of dictators and strongmen.
He has threatened the long term stability of our govt and economy with tax give aways to his wealthy peers. He has threatened the short and mid term stability of our economy with unnecessary trade wars.
Other countries are benefiting, some that we have been at odds with for decades, at the expense of our country and that of our allies, and it is specifically because of decisions that trump has made, due to his desire for personal enrichment over the benefit of the country that he represents.
He has called for an increase in police brutality, undermining the public’s trust in local law enforcement.
He has undermined our country’s federal intelligence and law enforcement agencies that he now controls by starting and spreading false and malicious stories while using the bully box of the presidency.
He has specifically given russia intelligence that was entrusted to us by foreign governments, meaning that those governments intelligence agencies are no longer willing to share information that could be crucial to our protection.
I could go on, but I’m a combination of sickened and bored with this list, and I am sure that he will do something next week that will top that anyway.
Now, you may feel that these are all the qualities of a leader that you admire, and that being weakened on the world stage and having our economy falter due to his whims is a great thing, so it is a matter of opinion as to how much damage a person can do before you would consider them to have betrayed the office to which you placed him, so ymmv.
So, then explain yourself, why would you think that a a summit with putin was the entirety of the grievances against this man, to the point of repeating your inane question? What actions would it take for a president to be considered to be working against the interests of the country he is elected to represent, in your eyes?