(CNN) - The cause for former Vice President Dick Cheney's hospitalization is related to his recurring heart trouble, a family friend of Cheney's told CNN said Sunday.
Cheney was suffering from atrial fibrillation, or irregular heart rhythm, the friend said.
Cheney was admitted to George Washington University Hospital on Friday as a result of "progressive retention of fluid related to his coronary artery disease," Cheney's office said.
At the hospital, Cheney was placed on intravenous medication and his condition has "markedly improved," his office said in a statement Saturday.
On Sunday, Cheney's daughter, Liz Cheney, said that the former vice president was "feeling better" and would hopefully be released Monday.
Updated: 10:20 a.m.
Toronto, Canada (CNN) - Who says there's no accountability at the G-20 summit?
President Obama and British Prime Minister David Cameron kept their word Saturday and fulfilled a recent bet made on the World Cup match between the United States and England.
The wager, made two weeks earlier, had the leader of the losing country owing beer to the leader of the winning country. But the two teams tied so both men brought beers to the summit and exchanged the items during their bilateral meeting.
Obama presented Cameron with Goose Island 312 beer from Chicago while Cameron gave the President 5.2 percent Hobb Goblin beer.
After clinking bottles, both men made statements reaffirming the "special relationship" between the two countries.
Des Moines, Iowa (CNN) - Iowa Republican gubernatorial nominee Terry Branstad looks east when asked if he is concerned about a possible third-party candidacy by rival Bob Vander Plaats.
Past Illinois and Indiana, Ohio and Pennsylvania is the traditionally politically "blue" state of New Jersey, whose voters elected a Republican governor last year. GOP challenger Chris Christie defeated Democratic incumbent Gov. Jon Corzine there in 2009 despite the presence of a third-party candidate, Christopher Daggett.
"Look what happened in New Jersey last year," Branstad told CNN Saturday, before Vander Plaats lost his bid to become the GOP nominee for lieutenant governor. "They had an independent candidate and, as you got closer and closer to the election, people looked at the choice, 'You want this Corzine or do you want Chris Christie?' They went for Chris Christie."
It is unclear what Vander Plaats plans to do. He lost the gubernatorial primary on June 8, and delegates at the Iowa Republican Party State Convention on Saturday chose Branstad's handpicked running mate, state Sen. Kim Reynolds, to be the party nominee for lieutenant governor.
(CNN) - U.S. President Barack Obama invited his Chinese counterpart for a visit, China's state media reported Sunday, amid lingering differences between the two powerful nations.
The two leaders met on the sidelines of a summit of 20 developed and emerging countries, state-run Xinhua said.
President Hu Jintao said China is working to increase imports from the country, according to state media.