Complex sentence: In exile in the United States, Calles was in contact with various American fascists, although he rejected their anti-Semitic and anti-Mexican sentiments, and also befriended José Vasconcelos, a Mexican philopher who had previously been a political enemy.
Split into simpler sentences: In exile in the United States, Calles was in contact with various American fascists, although he rejected their anti-Semitic sentiments. He also befriended José Vasconcelos, a Mexican philopher who had previously been a political enemy.