"Former national-security adviser John Bolton says in his new book that the House of Representatives in its impeachment inquiry should have probed President Donald Trump not just for pressuring Ukraine to incriminate his domestic foes, the New York Times reports, but for a variety of instances when he sought to intervene in law-enforcement matters for political reasons." :
https://www.marketwatch.com/story/bolton-says-in-book-house-should-have-probed-trump-beyond-ukraine-report-2020-06-17