With much of his legislative agenda stalled in Congress, President Obama and his team are preparing an array of actions using his executive power to advance energy, environmental, fiscal and other domestic policy priorities....

...[P]residents have logged significant accomplishments through the stroke of a pen. In 1996, on his own authority, Mr. Clinton turned a 2,600-square-mile section of southern Utah into the Grand Staircase-Escalante National Monument, in what was called at the time his boldest environmental move. Mr. Bush followed suit in 2006 by designating a 140,000-square-mile stretch of islands and ocean near Hawaii as the largest protected marine reserve in the world, in what some see as his most lasting environmental achievement.

The use of executive power came to a head this week when Mr. Obama confronted Senator Mitch McConnell of Kentucky, the Republican leader, about nominations held up in the Senate. In a meeting with Congressional leaders at the White House on Tuesday, Mr. Obama turned to Mr. McConnell and vowed to use his power to appoint officials during Senate recesses if his nominations were not cleared.