I don't know what's typical of debates for US congressional party nominations, but could you imagine a debate for president, or governor, or even US senate, where a candidate was allowed to paint his own name all over the walls of the building to essentially make up for his poor performance in the debate (which is absolutely the case, as can be seen by watching the debates and understanding the difference between where he stands on positions and where the average voter in his district stands)? And then the first time the debate organizers ask him not to, he cries that they're out to "rig" the debate against him?
The complaint is just ridiculous on its face. He sounds like a pompous fool.