Mr Obama who has said healthcare reform is his number one domestic priority robustly defended his plan to include a public option among the competing healthcare plans.

• 奥巴马曾表示，医改是其国内事务中的头等大事。他在演讲中为自己的计划作了有力辩护，即在彼此相左的各项医疗保险计划中纳入公众选择权。