U.S. drivers and President Obama are both benefitting from falling gas prices this Memorial Day weekend.

The nationwide average price for regular gasoline has dropped 18 cents in the last month to $3.65-per-gallon according to AAA, just in time for one of the busiest weekends on the nation’s roads.

While the prices are still high, the decline has sapped some of the octane from GOP attacks on Obama’s energy policies.

“I think whenever you see gas prices decline, you will see these campaigns and parties switch to a different message, because that energy message doesn’t have the same bite it would have if energy costs were high,” said GOP strategist Tyler Harber, a partner with Harcom Strategies.