Quid pro quo
Quid pro quo is Latin for "Something for Something" and refers to asking for something from somebody who will a benefit in return.
When used in the context of requests on government officials, almost any "quid pro quo" is illegal. For example, the Rod Blagojevich seat-selling scandal was a "quid pro quo" that resulted in a lengthy prison sentence for the (pro-abortion) former governor of Illinois.
Democrats accused President Donald Trump of engaging in a "quid pro quo" whereby the U.S. would send aid to Ukraine only if it investigated the corruption related to Joe Biden when he was Vice President and his son Hunter was being paid $50,000 a month by a Ukrainian natural gas company despite Hunter's lack of relevant experience. This alleged quid pro quo was the basis for a Democrat impeachment effort in 2019.