Complex sentence: In late 1990, they went to the World Wrestling Federation where they were managed by Jimmy Hart and won the World Tag Team Titles from The Hart Foundation before feuding with and losing the titles to the Legion of Doom.
Split into simpler sentences: In late 1990, they went to the World Wrestling Federation where they were managed by Jimmy Hart. They won the World Tag Team Titles from The Hart Foundation before feuding with and losing the titles to the Legion of Doom.