Complex sentence: The strongest rebuke came from US Senator John McCain from Arizona; the former presidential candidate said that Trump did not represent the ideals of the Republican Party and its leaders, and that he had "a moral obligation" to speak out on these issues.
Split into simpler sentences: The strongest rebuke came from US Senator John McCain from Arizona. The former presidential candidate said that Trump did not represent the ideals of the Republican Party and its leaders and that he had "a moral obligation" to speak out on these issues.