Exclusive: U.S. energy head warns Republicans oil bill would lift pump prices
U.S. Energy Secretary Jennifer Granholm warned Republicans in a letter seen by Reuters on Wednesday that limiting President Joe Biden's authority to tap the nation's oil reserves would undermine national security, cause crude oil shortages and raise gasoline prices.
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### Instruction: Exclusive: U.S. energy head warns Republicans oil bill would lift pump prices

### Response: U.S. Energy Secretary Jennifer Granholm warned Republicans in a letter seen by Reuters on Wednesday that limiting President Joe Biden's authority to tap the nation's oil reserves would undermine national security, cause crude oil shortages and raise gasoline prices.