If a federal official commits a crime or otherwise acts improperly, the House of Representatives may impeach—formally charge—that official. If the official subsequently is convicted in a Senate impeachment trial, he is removed from office.
<> “A conviction on an article of impeachment requires a two-thirds vote of those Senators present.” [page 5 at the following link]
https://www.senate.gov/reference/resources/pdf/98-806.pdf
<> Passage of the impeachment resolution in the House of Representatives: “Passage is by simple majority vote” i.e 218 votes. [page 10 at the link below]
The Impeachment Process in the House of Representatives - Congressional Research Service - Updated August 12, 2019
https://fas.org/sgp/crs/misc/R45769.pdf