I know what a perfect issue that is undeniable, Donald Trump has turned the world’s greatest country, into a Banana Republic. Fact.
How do you figure? What's your definition of a "Banana Republic"? A place where elected officials (like Trump) determine foreign policy instead of Unelected Diplomats?
Yeah, Trump does a real good with foreign policy.

North Korea is still shooting of rockets and continuing their nuclear program.
Turkey rolled Trump regarding Northern Syria and Trump betraying the Kurds, who are major reason Trump won his war with the ISIS. Now Turkey is looking at doing a big arms deal with Russia.
Saudi Arabia, gets a smart bomb factory (and takes American jobs), gets the US to leave the Iran Nuclear Agreement, which has created a dangerous situation in the Middle East as Iran speeds it's way to have nuclear weapons. Oh and Saudi Arabia is still the biggest financiers of terrorism.
And of course Russia, another failure. Trump gives Russia footings in the ME at the same time Russia gets one of our bases, free.
Russia has loves Trumps screw up with Ukraine. He tried to get Ukraine to say it was them instead of Russia, as impeachment heats up, Trump tells Ukraine to work out things with Russia and then come back to him. Win for Russia and a betrayal for the Ukrainians, Stopping US ships for doing their usual Black Sea because Russia might get mad. And that's just a few examples of Russia playing Trump.
Recently, Pacific Rim countries have created the largest trade organization in the world in response to Trumps trade approach. Regional Comprehensive Economic Partnership or RCEP."RCEP was hard fought, but a choice made easier by the calculation that Asia needed to push back against protectionism even as the United States chose that path. "Another added failure to Trump's trade policy and markets lost.
Not to many countries trust Trump or Trump's lack of US diplomatic skills or even a commitment to diplomacy.
Trump has bombed big time with foreign policy.
Try another reason why America has become Trump's Banana Republic.