The attack against Romney is a return-fire to the Republican front-runner’s charge that Obama is overly focused on renewable resources, deliberately driving up gas prices, and delaying projects like the Keystone XL Pipeline.
By Callum Borchers| Globe Correspondent April 05, 2012
Read it all, now.
Don't miss any of your favorite stories again. Read the stories that matter to you as much as you want, whenever you want when you subscribe to BostonGlobe.com.
Get full access today for just 99¢