Presidential hopeful Barack Obama says if he becomes president he will scrutinize all laws passed during George W. Bush's term in office.

Obama said one of the first things he plans to do in office is to ensure the constitutionality of all the laws and executive orders passed while Republican President Bush has been in office, Reuters reported.

Those that don't pass muster will be overturned, he said.

“I would call my attorney general in and review every single executive order issued by George Bush and overturn those laws or executive decisions that I feel violate the constitution,” Obama- a former constitutional law professor at the University of Chicago Law School - said.

Obama added his other goals for the first 100 days in office are to work out a plan to withdraw troops from Iraq; make progress on alternative energy plans and launch legislation to reform the health care system.

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