Complex sentence: Javits won easily, but Buckley received a large number of votes from disaffected conservative Republicans, and in 1970, ran for the U.S. Senate against liberal Republican incumbent Charles Goodell.
Split into simpler sentences: Javits won easily, but Buckley received a large number of votes from disaffected conservative Republicans. In 1970, he ran again for the U.S. Senate, this time against the liberal Republican incumbent Charles Goodell.