“President Barack Obama scrapped part of a long-planned trip to Asia and planned to meet with congressional leaders on Wednesday as a U.S. government shutdown entered a second day with no end in sight.The impasse has raised questions about Washington’s ability to carry out its most essential duties. Though a short-term shutdown would do relatively little damage to the world’s largest economy, global markets could be roiled if Congress also fails to raise the debt limit before borrowing authority runs out in coming weeks.”