The White House has been exploring ways to circumvent Congress and unilaterally lift sanctions on Iran once a final nuclear agreement is reached, according to sources with knowledge of White House conversations and congressional insiders familiar with its strategy. The issue of sanctions relief has become one of the key sticking points in the Iran debate, with lawmakers pushing for increased economic penalties and the White House fighting to roll back regulations. While many in Congress insist that only the legislative branch can legally repeal sanctions, senior White House officials have been examining strategies to skirt Congress, according to those...