Complex sentence: At the time, Vice President John Nance Garner supported federal intervention to break up the Flint Strike, but this idea was rejected by President Franklin D. Roosevelt, but the president urged GM to distinguish a union so the plants could re-open.
Split into simpler sentences: At the time, Vice President John Nance Garner supported federal intervention to break up the Flint Strike, but this idea was rejected by President Franklin D. Roosevelt. The president urged GM to distinguish a union so the plants could re-open.