Donald Trump doesn't seem to understand that he is making things worse for himself. He doesn't even seem to understand the term "obstruction of justice", the crime that brought Nixon down. In a single breath, Trump managed to say that "There has been no obstruction", and that "there is nothing to see here, and the Russia investigation needs to be closed down". The latter statement is precisely what is meant by "obstruction": using undue influence to stop an investigation from running its course.
Trump is making Robert Mueller's job a lot easier by being a moron and running his mouth - two of the very few things that seem to come natural to him.
