Complex sentence: Voinovich accused Metzenbaum of being soft on child pornography, charges that were roundly criticized by many, including John Glenn, Metzenbaum's Democratic party rival and then-Senate colleague, who recorded a statement for television refuting Voinovich's charges.
Split into simpler sentences: Voinovich accused Metzenbaum of being soft on child pornography, charges that were roundly criticized by many, including John Glenn, Metzenbaum's Democratic party rival and then-Senate colleague came to Metzenbaum's aid. Glenn recorded a statement for television refuting Voinovich's charges.