> "The opposition has been very public in their lobbying for foreign intervention in Venezuela" is not an assumption, it is a direct reference to evidence

... and is not the statement in question.

The statement in question is your "they were invited in".

And when I look for evidence of that, I find only counter-evidence e.g.

https://www.bbc.co.uk/news/articles/crmlz7r0zrxo Trump also said he had not spoken to Venezuela's opposition leader María Corina Machado, who he characterised as having neither the support nor the respect within Venezuela to become its leader.