Biden was blasting Trump in Germany not long ago. How about all the insults heaped on Trump by 0bama, Clinton, and Kerry while they have been overseas?
I think Democrat Presidents have made similar political comments when overseas but don’t remember the details. Certainly Democrat politicians have. On the day after Nixon’s second inaugural, Sen. McGovern was in Oxford to deliver a speech attacking Nixon (his “Richard IV” speech). During Trump’s last summit with Kim, the Democrats in the House had televised hearings with known liar Michael Cohen simply for the purpose of embarrassing Trump.