Complex sentence: Watson's opposition to civil rights legislation exceeded that of most other Southern Republicans, notably being the only House Republican to vote against the Jury Selection Act of 1968, a civil rights measure intended to eliminate racial discrimination in jury selection.
Split into simpler sentences: Watson's opposition to civil rights legislation exceeded that of most other Southern Republicans. For instance, he was the only House Republican to vote against the Jury Selection Act of 1968, a civil rights measure intended to eliminate racial discrimination in jury selection.