CNN 's Ed Hornick contributed to this report . Push for domestic offshore oil drilling is a reversal in policy for Sen. Bush . President Bush 's support could hurt Obama 's efforts to paint himself as a maverick . McCain says offshore drilling wo n't lower gas prices in the short term . McCain 's drilling position may hurt him in Texas , a state with 55 electoral votes .
Push for domestic offshore oil drilling is a reversal in policy for Sen. Bush . President Bush 's support could hurt Obama 's efforts to paint himself as a maverick . McCain says offshore drilling wo n't lower gas prices in the short term . McCain 's drilling position may hurt him in Texas , a state with 55 electoral votes .