BEIJING, Sept. 3 (Xinhuanet) -- US President campaigned at the University of Colorado in Boulder as he prepared to formally accept the Democratic presidential nomination at his party’s convention next week in Charlotte, North Carolina.

Before addressing thousands of supporters, Obama stopped off at a restaurant in Boulder, where he chatted with customers enjoying brunch. Obama told supporters his Republican presidential rival offered no new ideas when he spoke at the Republican party’s convention in Tampa, Florida last week.

The Democratic National Convention begins in Charlotte on Tuesday. Obama will deliver his nomination-acceptance speech on Thursday.

(Source: CNTV.cn)