Shortly before President Trump tweeted about a meeting with Marco Rubio and Rick Scott where the "terrible abuses by Maduro" were discussed, the Washington Post published an anonymously sourced story claiming that Trump is growing frustrated with the situation in Venezuela, and is blaming aides like Bolton for misleading him about opposition leader Juan Guaido's chances of success.
According to WaPo, Trump has privately described Maduro as a "tough cookie", and blamed aides for misleading him when they said the socialist strongman could be ousted during last week's demonstrations. In recent days, Trump has expressed concern that Bolton is trying to get him "into a war." We imagine a leaked plan for a US-backed coup prepared by SOUTHCOM hasn't helped to assuage these concerns.
And remember, Bolton has also been a key figure in escalating tensions with Iran to what is starting to look like the brink of an armed conflict.