(CNN) The US Department of Energy has released a new batch of documents related to its former Secretary Rick Perry and Ukraine.

The documents show how the Department of Energy pushed for energy reform and even applauded Ukraine for its handling of corruption in May 2019, when Perry led a delegation to meet new Ukrainian President Volodymyr Zelensky.

Yet the new set of documents, coming after the House sought and couldn't get them and many more, don't cover how -- almost immediately upon his return to the US -- Trump supplanted that approach by pushing Perry in another direction: to work with his personal attorney Rudy Giuliani and to pursue a different, more specific Ukrainian corruption crackdown, one that would help Trump politically, according to several State Department witnesses who testified to the House.

Evidence related to that later push -- of which Perry was a central player, other administration officials said under oath -- isn't included in the release on Tuesday, which largely covers documents used to brief Perry before his trip abroad.

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