Complex sentence: Along with all other Unionist MPs, he resigned his seat in December 1985 in protest at the Anglo-Irish Agreement but was handsomely re-elected in a by-election in January 1986.
Split into simpler sentences: Along with all other Unionist MPs, he resigned his seat in December 1985 in protest at the Anglo-Irish Agreement. He was re-elected at a by-election in January 1986.