David Zelizer : Though Obama has been far more timid in using executive power than President George W. Bush , many in the GOP suddenly have a legal problem with presidents going their own way . President Obama continues to take action even though his agenda stalled in Congress . He says Obama is doing what other presidents have done , but there are limits to reliance on executive power . Zelizer : Next president could quickly reverse Obama 's policies , and lack of congressional support weakens them .
David Zelizer : President Obama continues to take action even though his agenda stalled in Congress . He says Obama is doing what other presidents have done , but there are limits to reliance on executive power . Zelizer : Next president could quickly reverse Obama 's policies , and lack of congressional support weakens them .