Complex sentence: Elections to the United States Senate will be held on November 6,2018, with 33 of the 100 seats in the Senate being contested in regular elections whose winners will serve six-year terms from January 3,2019, until January 3,2025.
Split into simpler sentences: Elections to the United States Senate will be held November 6,2018, with 33 of the 100 seats in the Senate being contested in regular elections. The winners will serve six-year terms from January 3,2019 to January 3,2025.