Your googler broken? "Trump investigation of Hillary Clinton" try that one.
Because your statement above is demonstrably false. You're either lying or you're stupid. I don't think you're stupid.
From a 2020 PolitiFact article
No special counsel was ever appointed to investigate Hillary ClintonBacked by rally-goers chanting "Lock her up," President Donald Trump tried to have his 2016 opponent, Hillary Clinton, investigated by a special counsel. But he was never able to make it happen.
In 2017, Trump sought to have his then-Attorney General, Jeff Sessions, "un-recuse" himself from the Justice Department's investigation into whether foreign election interference benefited Trump. According to the special counsel investigation headed by Robert Mueller, Trump wanted Sessions to do this to help in prosecuting Clinton for her use of a private email server while secretary of state, even though the Justice Department had closed its case on that matter in 2016.
But no special prosecutor was ever tasked with investigating Clinton.
The closest thing to an investigation of Clinton's emails was released publicly in October 2019, but it was actually a probe that began before Trump was elected president. The three-year-long investigation by the State Department's Bureau of Diplomatic Security found that there was no widespread mishandling of classified information.
"While there were some instances of classified information being inappropriately introduced into an unclassified system in furtherance of expedience, by and large, the individuals interviewed were aware of security policies and did their best to implement them in their operations," the report said.
We rate this a Promise Broken.
Our Sources
New York Times, "Mueller Report Reveals Trump's Fixation on Targeting Hillary Clinton," April 24, 2019
Politico, "State Dept. finds no 'systemic' classified violation in Hillary Clinton private-server emails," Oct. 18, 2019
Department of State, "Report on Security Incidents Related to Potentially Classified Emails sent to Former Secretary of State Clinton's Private Email Server," Sept. 13, 2019