campaign
... that U.S. Vice President Hubert Humphrey entered the 1968 presidential race too late to participate in the Democratic primaries, and had to use "favorite son" candidates as stand-ins for his campaign?
... that <a href="./Vice_President_of_the_United_States" id="mwEkA" rel="mw:WikiLink" title="Vice President of the United States">U.S. Vice President</a> <a href="./Hubert_Humphrey" id="mwEkE" rel="mw:WikiLink" title="Hubert Humphrey">Hubert Humphrey</a> <i id="mwEkI">(pictured)</i> entered the <a class="mw-redirect" href="./United_States_presidential_election,_1968" id="mwEkM" rel="mw:WikiLink" title="United States presidential election, 1968">1968 presidential race</a> too late to participate in the <a href="./Democratic_Party_(United_States)" id="mwEkQ" rel="mw:WikiLink" title="Democratic Party (United States)">Democratic</a> primaries, and had to use "<a href="./Favorite_son" id="mwEkU" rel="mw:WikiLink" title="Favorite son">favorite son</a>" candidates as stand-ins for his <b id="mwEkY"><a class="mw-redirect" href="./Hubert_Humphrey_presidential_campaign,_1968" id="mwEkc" rel="mw:WikiLink" title="Hubert Humphrey presidential campaign, 1968">campaign</a></b>?