“We are reviewing a list of presidential executive orders and directives to get the job done across a front of issues,” said Rahm Emanuel, the White House chief of staff. Any president has vast authority to influence policy even without legislation, through executive orders, agency rule-making and administrative fiat. And Mr. Obama’s success this week in pressuring the Senate to confirm 27 nominations by threatening to use his recess appointment power demonstrated that executive authority can also be leveraged to force action by Congress. “If the stalling tactics continue,” said Robert Gibbs, the White House press secretary, “he’s not ruling...