South Korea - At the tail end of his 90 minute meeting with Russian President Dmitri Medvedev Monday, President Obama said that he would have "more flexibility" to deal with controversial issues such as missile defense, but incoming Russian President Vladimir Putin needs to give him "space."

The exchange was picked up by microphones as reporters were let into the room for remarks by the two leaders.

The exchange:

President Obama: On all these issues, but particularly missile defense, this, this can be solved but it's important for him to give me space.

President Medvedev: Yeah, I understand. I understand your message about space. Space for you…

President Obama: This is my last election. After my election I have more flexibility.

President Medvedev: I understand. I will transmit this information to Vladimir.

When asked to explain what President Obama meant, deputy national security adviser for strategic communications Ben Rhodes told ABC News that there is room for the U.S. and Russia to reach an accommodation, but "there is a lot of rhetoric around this issue - there always is - in both countries.

What started as a good day for Rick Santorum took an abrupt turn on Sunday after the GOP presidential candidate grew frustrated with reporters asking him to clarify his remark that Mitt Romney is the worst Republican in the country to take on President Obama.

During his final campaign stop of the day here, Santorum said of Romney, “Pick any other Republican in the country, he is the worst Republican in the country to put up against Barack Obama." The comments, Santorum would clarify, were in reference to the similarities between Romney's and the president on the issue of health care. It is a common critique he levels against his chief rival, but never has the former Pennsylvania senator called Romney the "worst Republican in the country" to go head-to-head with the president.

When pressed by reporters to clarify his statement, Santorum said, “On the issue of health care. That’s what I was talking about, and I was very clear about talking about that. OK? Come on guys, don’t do this. I mean you guys are incredible. I was talking about Obamacare, and he is the worst because he was the author of Romneycare.”

But the questions struck a chord with Santorum, and when he faced the same question again, he used a profane word and accused the media of "distorting" his speech.

However a press release sent out from the Santorum campaign shortly after the rally here seemed to double down on the candidate's comments. "Rick Santorum spoke plainly and clearly that of all the Republicans in the field, Mitt Romney is the worst possible candidate to take on Barack Obama, because Mitt Romney authored the blueprint for Obamacare and the issue of healthcare would be off the table," the release said.

Santorum has done a lot of clarifying lately, with recent comments suggesting Obama would be a better choice than Romney in a general election and saying the unemployment rate will not affect his campaign. In both cases, he accused the media and his opponents of taking his words out of context. But in both cases, the Romney campaign used his own words against him.

Republican hopeful Newt Gingrich slammed Barack Obama on Friday, saying the president's remarks about the fatal February shooting of Trayvon Martin were "disgraceful."

President Barack Obama addressed Martin's death during a Rose Garden appearance earlier Friday, framing the tragedy in personal terms by saying, "If I had a son, he'd look like Trayvon." Gingrich responded to Obama's remarks during a "Hannity Radio" interview:

What the president said, in a sense, is disgraceful. It’s not a question of who that young man looked like. Any young American of any ethnic background should be safe, period. We should all be horrified no matter what the ethnic background.

Is the president suggesting that if it had been a white who had been shot, that would be OK because it didn’t look like him. That’s just nonsense dividing this country up. It is a tragedy this young man was shot. It would have been a tragedy if he had been Puerto Rican or Cuban or if he had been white or if he had been Asian American of if he’d been a Native American. At some point, we ought to talk about being Americans. When things go wrong to an American, it is sad for all Americans. Trying to turn it into a racial issue is fundamentally wrong. I really find it appalling.

Gingrich's comments came amid boiling public outrage over the death of Martin -- an unarmed, 17-year-old African American shot by a volunteer neighborhood watchman. The former House speaker commented on the shooting Thursday during an interview with CNN's Piers Morgan, calling it a "tragedy."

President Obama's signature on an executive order that updates presidential authority to take control over national defense resources in time of emergency has legal minds arguing over whether the White House is trying to expand power or merely organize rules 18 years in the making.

The executive order, signed late Friday, revokes an earlier order put in place by President Bill Clinton in 1994 and says any other previously issued orders or rulings by previous presidents shall remain in effect unless they are inconsistent with the new order.

The purpose of the order, according to its contents, is to make sure the U.S. is prepared to mobilize technological and industrial resources "capable of meeting national defense requirements" and ensure "technological superiority of its national defense equipment in peacetime and in times of national emergency."

It orders Cabinet agencies to determine military and civilian staffing and evaluate access to resources like suppliers, materials, skilled labor and professional and technical personnel. It also is intended to ensure the U.S. government is prepared "in the event of a potential threat to the security of the United States."

The executive order gives the homeland security secretary authority to issue guidance to other department heads to establish and activate a National Defense Executive Reserve (NDER) composed of experts in the private and public sector -- though not full-time federal employees -- to fill executive positions in the federal government in the event of a national defense emergency.

That includes employing consultants or other experts without compensation. The labor secretary can also begin training workers to help address national defense requirements.

The order scopes out the different roles of the National Security Council, Homeland Security Council and National Economic Council in advising the president -- giving the secretary of homeland security authority to provide for the central coordination of the plans and programs delegated under the order.

It also gives authority to the secretary of Commerce to determine how to get the industrial base to support the national defense and meet defense program needs. The Agriculture Department will take care of food resources while the Defense Department will handle water resources in addition to its military role. The heads of the Energy, Health and Human Services and Transportation departments also are responsible for their jurisdictions.

The order notes that unless determined otherwise by the president or his national security adviser, the authority "may be used only to support programs that have been determined in writing as necessary or appropriate to promote the national defense."

This order came on the heals of another presidential order a few days prior that reiterated the United States' "national emergency" stance toward Iran -- a rather routine measure that has been repeated every year since 1995 but that might have caused some confusion.

Several legal eagle bloggers say there's nothing to fear.

"There is enough that Obama actually does wrong without creating claims which do not hold up to scrutiny," wrote William Jacobson, associate clinical professor of law at Cornell Law School and blogger for the Legal Insurrection blog.

We know that President Barack Obama is a huge fan of Showtime's breakout hit "Homeland," but it looks like his 13-year-old daughter Malia is huge fan of NBC's "Parks and Recreation."

"Aziz Ansari... now this is big because Malia is a big 'Parks and Recreation' fan," the President said at a fundraiser Thursday night at ABC Kitchen in New York City. "So having Aziz here is like the only thing she thinks is worth me doing. I want to thank him for what he said earlier. I know he's backstage, but I just want to say that I have more Twitter followers than you, man."

Malia may be able to watch Ansari bring the funny on "Parks and Rec," but there is one show that the President makes sure his daughters stay away from -- "Keeping Up With the Kardashians."

"Barack really thinks some of the Kardashians -- when they watch that stuff -- he doesn't like that as much," First Lady Michelle Obama said in an interview with iVillage.com last October. "But I sort of feel like if we're talking about it, and I'm more concerned with how they take it in - what did you learn when you watched that. And if they're learning the right lessons, like, that was crazy, then I'm like, okay."

The President is a fan of quality TV: His other TV favorites include HBO's "Boardwalk Empire" and ABC sitcom "Modern Family." His favorite show of all-time is David Simon's critically-acclaimed drama "The Wire," which told the story of poverty and the drug trade in Baltimore.