whether a sitting U.S. president can be prosecuted
... that no law establishes whether a sitting U.S. president can be prosecuted?
... that no law establishes <b id="mwAng"><a href="./Presidential_immunity_in_the_United_States" id="mwAnk" rel="mw:WikiLink" title="Presidential immunity in the United States">whether a sitting U.S. president can be prosecuted</a></b>?