No Crime Necessary to Impeach a Texas Governor – It is an “at will” of the legislature et all “the people”
As in the U.S. Constitution, the only legal method of removing a governor from office is through the process of impeachment and conviction. Impeachment is the process of accusing an official of misconduct in office and is similar to the process of indictment by a grand jury. Impeachment is only a formal accusation – it is not a determination of guilt or innocence. This judgment requires a trial.
Efforts to remove a governor begin in the Texas House of Representatives, which must cast a majority vote in favor of impeachment. Such a vote amounts to bringing formal charges against a governor. The Texas Constitution, however, does not provide any specific grounds for impeachment, leaving such judgments in the hands of the Legislature.
Source:Texas Politics UT Austin