Dana White At RNC: Trump's A Fighter ... And I Know Fighters!!

UFC honcho Dana White took the stage Tuesday evening at the Republican National Convention and praised Donald Trump as a loyal friend who's had his back since day 1.

White opened his speech by saying "I'm sure most of you are wondering, 'What are you doing here?'" -- but went on to explain how Donald was the first person to support UFC when White and his partners bought the business in 2001.

Long story short, White says Trump is the kind of fighter America needs ... and has all the tools to be a kickass president.

White appeared on the "TMZ Sports" TV show a while back and explained why he's Team Trump for life.