President Barack Obama will have scant time to rest up from his eight-day Asia trip. On Saturday, two days after his return to Washington, the Senate plans a make-or-break vote on his hard-fought plan to overhaul the nation's health care system. Obama also confronts a difficult choice on strategy and troop levels in Afghanistan, which will be criticized no matter what he decides.His bid to re-regulate the financial industry faces stiff opposition in Congress. The decision to try high-profile terror suspects in federal courts has drawn withering Republican attacks. And he faces a problematic push by House Democrats for a new and costly jobs bill.