Tito Ortiz got the ultimate rock star treatment at a U.S. Border Patrol station in Texas ... where agents lined up to take pics ... and even asked him to sign their handcuffs.
... all while sporting a Trump 2020 campaign shirt.
Tito's in McAllen, TX -- about 3 miles from the Mexico border -- for his big Combate Americas fight on Saturday with Alberto El Patron.
And, with Ortiz being a very outspoken fan of Trump's immigration policies, he decided to meet with the people in charge of patrolling the area ... and they LOVED him!!!
Check out the video ... Ortiz took pics with everyone, signed autographs and even gave a motivational speech about overcoming adversity.
Meanwhile, his opponent Alberto El Patron -- who hates Trump -- went a different promotional route this week ... choking out a POTUS impersonator on a Spanish language TV show.
As we previously reported, Tito is tight with the Trump family and recently had lunch in NYC with Donald's sons, Eric and Don Jr.