President Obama urged Americans not to be discouraged by the rocky roll-out of his health care plan, known as Obamacare, and vowed to fix any remaining glitches.
International Editor, Bill Neely reports, from Washington:
The move follows Russia's decision to grant temporary asylum to National Security Agency leaker Edward Snowden and reflects the US's frustration with Russia on issues such as missile defence and human rights.
The White House says Obama still plans to attend the Group of 20 economic summit in St. Petersburg, Russia, but has no plans to meet with Putin there one-on-one.
Obama will add a stop in Sweden to his early September travel itinerary.