Complex sentence: McAuliffe took advantage of the time he spent fundraising for Clinton to fundraise for his own endeavors; as such, McAuliffe's political clout and profile grew significantly during the Clinton presidency.
Split into simpler sentences: McAuliffe took advantage of the time he spent fundraising for Clinton to fundraise for his own endeavors. As such, Mr. McAuliffe's political clout and profile grew significantly during the Clinton presidency.