The June 14th event should be ultimate safe territory for the Republican, who will celebrate his 80th birthday that day.Trump has close ties with the violent, popular sport's leaders and many of its leading fighters are open supporters.But jarring tensions are emerging in the run-up to UFC Freedom 250, the event being held in a specially built arena erected over the White House's elegant South Lawn.'Odd'Joe Rogan, America's top podcaster and a key voice in the UFC world, told his huge audience on May 27 that he found the idea of making top athletes fight outdoors in the June heat "odd.""I don't like it," he said.UFC chief and Trump ally Dana White has cited Washington's infamous insect population as a potential problem for the open-air fights.Beyond logistical challenges are deeper questions about spending a reported $60 million on a bloody spectacle outside the revered home of the US presidency while Trump is embroiled in war with Iran and polls show Americans deeply discontented over the economy.In March, Rogan said he was excited for the event, but that it was "weird to have a fight at the White House" given the security tensions in wartime.This week, he softened his earlier comments, saying, "It's so funny watching people lose their mind over it." "I mean, there's no more American thing than having a UFC fight on the White House lawn. It's so American. It's so Trump. It's so crazy. You know what I mean? A UFC fight on the White House lawn is bananas," he added, excitedly.Outspoken fighter banned?