the current government under maduro, being over thrown has nothing to do with US. It is being done by the people of venezuela and juan guaido (new opposition leader)...the US, along with some other south american countries are just in favor and recognizing him as the new leader. however, with the threat made by maduro to kick out US diplomats, trump interjected by saying he would use 'all options' available to provide safety.
regime change is good...if the people wanted it. Venezuela is a federal presidential republic (some what of a D!cktatorship). US is in support of Venezuela becoming a democracy.