Substantial Evidence of Obstruction
Mueller concluded, “Taking into account that information and our analysis of applicable statutory and constitutional principles . . . we determined that there was a sufficient factual and legal basis to further investigate potential obstruction-of-justice issues involving the President.” - Volume II; Page 12 - Mueller Report
https://www.nytimes.com/interactive/2019/04/18/us/politics/mueller-report-document.html#g-page-224
https://www.nytimes.com/interactive/2019/04/18/us/politics/mueller-report-document.html#g-page-224
