John G. Campbell
... that despite having served as a member of the United States Congress, John G. Campbell was unable to prove to a court that he was a United States citizen?
... that despite having served as a member of the <a href="./United_States_Congress" id="mwDnE" rel="mw:WikiLink" title="United States Congress">United States Congress</a>, <b id="mwDnI"><a href="./John_G._Campbell" id="mwDnM" rel="mw:WikiLink" title="John G. Campbell">John G. Campbell</a></b> was unable to prove to a court that he was a <a class="mw-redirect" href="./United_States_citizen" id="mwDnQ" rel="mw:WikiLink" title="United States citizen">United States citizen</a>?