Hill: Sen. David Vitter (R-La.) sent a letter to President Obama on Monday urging him to send an administration official to a hearing this week and defend his proposals to address climate change.
Vitter said hes skeptical Senate Environment and Public Works Committee Chairwoman Barbara Boxer (D-Calif.) will maintain pledges to make the White House testify at a later hearing.
To date, Chairman Barbara Boxer has refused to invite any government witnesses to participate in this hearing. Although she...