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In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Carolyn Kaster / AP Education Secretary Arne Duncan 
  
 Vice President Joe Biden's declaration Sunday on "Meet the Press" that he's "absolutely comfortable" with gay marriage continued to reverberate Monday. 
  
 On Morning Joe, U.S. Secretary of Education Arne Duncan echoed Biden. Asked by TIME's Mark Halperin whether he thinks same-sex couples should be legally allowed to marry, Duncan said flatly: "Yes I do." 
  
 "Have you ever said that publicly before?," Halperin wondered. 
  
 "I don’t think I’ve ever been asked publicly," Duncan replied. 
  
 Forty-nine percent of Americans agree with Duncan and Biden on the issue, according to recent polling. That number has risen sharply in recent years. 
  
 The Morning Joe panel contrasted Biden and Duncan's stance with that of their boss, President Obama, who does not favor same-sex marriage, but has said his views are "evolving." 
  
 That's not enough for many backers of gay marriage, though. Before Duncan's appearance, the Morning Joe gang was joined by Politico's Jim VandeHei, who said the gay-rights community is frustrated that Obama hasn't yet come out in full-throated support for what they call marriage equality. 
  
 "They want him to come out and unequivocally state that he’s for gay marriage," said VandeHei. "And that’s why there’s been frustration from gay-rights activists since the beginning of the administration." 
  
 Most observers think Obama personally has no problem with same-sex nuptials. So why won't he take the leap, asked Willie Geist? 
  
 VandeHei admitted to being stumped. "I don’t really think that the politics are that tricky for him any more," he said. 
  
 But Joe Scarborough said the president likely has his eye on southern swing states like Virginia and North Carolina, where backing gay marriage could motivate social conservatives to turn out in droves against him. "You want to engage conservative Democrats, conservative independents, conservative Republicans?" asked Scarborough. "Then put this out there." 
  
 Halperin agreed, and said it's not just the south. "I would add Ohio to that list," he said. "And Wisconsin, and maybe Iowa." 
  
 Watch the clip below: ||||| Secretary of Education Arne Duncan endorsed same-sex marriage Monday, following Vice President Joe Biden's comments Sunday saying that he's "comfortable" with gay marriage. 
  
 Appearing on MSNBC's "Morning Joe," Duncan was asked by Time's Mark Halperin whether he believed it should be legal for same-sex couples to get married in the United States. 
  
 "Yes, I do," said Duncan. 
  
 When asked if he had said it publicly before, he replied that he thought that he had never been asked. 
  
 Duncan is the second cabinet secretary to publicly support same-sex marriage, with Housing and Urban Development Secretary Shaun Donovan saying last November that he "absolutely" supports it. 
  
 Biden said Sunday that he is "absolutely comfortable" with gay marriage, but added that the president sets the policy. His comments appeared to diverge from those made by President Barack Obama, who has said that he is still "evolving" on the issue. 
  
 LGBT groups quickly praised Biden, but the Obama campaign walked back his comments, with a spokesperson for the vice president saying, "The vice president was saying what the president has said previously -- that committed and loving same-sex couples deserve the same rights and protections enjoyed by all Americans, and that we oppose any effort to rollback those rights. ... Beyond that, the vice president was expressing that he too is evolving on the issue, after meeting so many committed couples and families in this country." |||||
Output:
Joe Biden's not the only one in the Obama administration comfortable with same-sex marriage. On Morning Joe today, Mark Halperin asked Education Secretary Arne Duncan if he supported same-sex marriage, and Duncan didn't equivocate at all. "Yes, I do," he replied. Asked if he'd ever said that publicly before, he said, "I don't think I've ever been asked publicly." Duncan is the second Cabinet member to declare his support, the Huffington Post observes; Housing and Urban Development Secretary Shaun Donovan said last November that he "absolutely" backs it.