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

President Barack Obama must use his Wednesday address to the nation on the Islamic State of Iraq and the Levant to "lay out a very certain case" for fighting the terrorist group, Rep. Mike Rogers said Sunday. 
  
 In his speech, Obama needs to "engage Congress, the American people on what exactly we’re going to do here," the chairman of the House Intelligence Committee said on CNN's "State of the Union." "We need to be aggressive in posturing to get ready for this. These are things the president can do.” 
  
 Rogers said he hopes Obama offers up an “endgame” and lays out a strategy to reach that point. 
  
 “I think this can be a very positive thing for the United States if we do this right,” the Michigan Republican said. 
  
 Read more about: Barack Obama, Mike Rogers, ISIL ||||| President Barack Obama’s increasingly aggressive stance toward Islamic State of Iraq and the Levant is “overdue,” Sen. Dianne Feinstein said Sunday, but she’s happy the president has ramped up his efforts to fight the group. 
  
 “I want to congratulate the president. He is now on offense,” the Senate Intelligence Committee chairwoman said on CNN’s “State of the Union.” 
  
 “It is overdue, but the president is now there. I think it is the right thing for America,” Feinstein said. And the time to act, she later added, is very soon: "Time's a-wasting. We’ve now said that we’re going to go on the offensive. It’s time for America to project power and strength." 
  
 The multilateral coalition that the Obama administration has built to combat ISIL is “a major change” to how the group is approached. “ISIS is a major threat to this country in the future” and is already a major threat to Iraq and Syria, the Democratic senator from California said. “I think where they are going is to Baghdad” to try to attack the U.S. Embassy there. 
  
 Read more about: Barack Obama, Iraq, Dianne Feinstein, ISIL ||||| Sen. Ted Cruz hinted in an interview released Sunday that growing instability around the world could help convince him to run for president in 2016 even as he resisted a direct attack on one potential Republican rival. 
  
 “It increases my interest in doing everything I can to change the direction we’re on," the Texas Republican told ABC News in an interview that aired in part on "This Week." 
  
 “The American people in 2014 and also November 2016 are going to be looking for leaders who want to work to restore America’s leadership in the world,” Cruz said. 
  
 (Also on POLITICO: Cruz woos donors, party elites) 
  
 The battle to shape U.S. foreign policy wages on not only between Democrats and Republicans, but within the Sen. Rand Paul (R-Ky.), another potential 2016 hopeful, has generally taken a more isolationist stance than most Republicans on conflicts around the world, though he's insisted in a Time magazine op-ed that he is not an isolationist and, to the contrary, hopes to see President Barack Obama act more aggressively to fight the threat posed by Islamic State of Iraq and the Levant. 
  
 Asked about Paul's assertion that he isn't an isolationist, Cruz wouldn't say whether he agrees. "I’m going to let Rand characterize his own views,” Cruz said. “And I will leave that to the American people to make their own judgments.” 
  
 Read more about: Rand Paul, Ted Cruz, 2016 Elections ||||| Sen. Ted Cruz accused President Obama of underestimating and misjudging the threat posed by ISIS, but said he should seek congressional approval before deciding whether to escalate the military campaign against the Islamic extremists. 
  
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 “What we ought to have is a directed, concerted, overwhelming campaign to take them out,” Cruz said in an interview on “This Week.” “The focus should be Iraq, but the real focus should be taking out ISIS. Within Syria, it should not be our objective to try and resolve the civil war.” 
  
 Cruz, a Texas Republican, said the president “has not demonstrated that he’s taking ISIS seriously.” Even as Cruz delivered a blistering critique of the administration’s foreign policy, he conceded that Republicans have their own foreign policy debate unfolding inside their party, which he said makes him more inclined to seek the presidency. 
  
 “The American people in 2014 and also November 2016 are going to be looking for leaders who want to work to restore America’s leadership in the world,” Cruz said. 
  
 President Obama to Address ISIS Strategy in Speech 
  
 ISIS Strategy a Moving Target for Obama Administration 
  
 Obama Says US Will 'Degrade and Ultimately Defeat' ISIS Like Al Qaeda 
  
 When pressed whether the challenges abroad made him more inclined to open his own bid for the Republican presidential nomination, he declared: “It increases my interest in doing everything I can to change the direction we’re on.” 
  
 Not all Republicans agree with Cruz’s view that the president should seek congressional approval. Sen. Marco Rubio, R-Fla., sent a letter to the White House on Friday, saying the president should act swiftly without the input of Congress. 
  
 For Republicans eyeing the White House in 2016, early divisions are becoming clear. 
  
 Sen. Rand Paul now says he would "destroy ISIS militarily." But his tough talk is at odds with his earlier views, which prompted him to write an essay this week in TIME Magazine, titled: "I am Not an Isolationist." 
  
 When asked whether he agreed, Cruz demurred, but did not come to Paul’s defense. 
  
 “Oh look, I’m going to let Rand characterize his own views,” Cruz said. “And I will leave that to the American people to make their own judgments.” 
  
 Among some grassroots Republicans, there is a growing non-interventionist strain with deep resistance to another war. 
  
 Louisiana Gov. Bobby Jindal, also visiting New Hampshire over the weekend, said it was a fine and dangerous line for the party to walk. 
  
 “The country, the world, needs America to be strong and predictable,” Jindal told “This Week.” “The world is getting more dangerous and less predictable because of a lack of American leadership.” 
  
 ISIS, along with a growing list of foreign policy challenges, are already front-and-center in the early stages of the 2016 campaign. Positions staked out now are likely to become a lasting part of a candidate’s record. 
  
 “It is absolutely true that there is a war weariness. We are tired of sending our sons and daughters to find in distant battles for years,” Cruz said, but added: “I don’t think the American people are at all reluctant to defend America. They’re just not interesting in nation building.” ||||| Former Secretary of State Henry Kissinger said on Sunday that President Barack Obama must respond disproportionately to the beheading of two American journalists by Islamic State fighters. 
  
 “When an American is murdered on television for the purpose of terrorizing Americans, there should be a response that you cannot – you would not analyze in terms of a normal response to provocation,” Kissinger said on CBS’s “Face the Nation” 
  
 Americans, he said, need the assurance that atrocities by ISIL against their countrymen are punished. 
  
 “Something has to crystallize out of this violence and it won’t happen without our leadership. We cannot do it all by ourselves, but we can make clear that certain tactics will be strongly resisted," he said. 
  
 Read more about: Barack Obama, Terrorism, Henry Kissinger, ISIL |||||
With President Obama's speech outlining his ISIS "game plan" coming Wednesday, there was no shortage of opinion today on the talk shows about what he should do. "What we ought to have is a directed, concerted, overwhelming campaign to take them out," Ted Cruz told ABC. "The focus should be Iraq, but the real focus should be taking out ISIS. Within Syria, it should not be our objective to try and resolve the civil war." Cruz dinged Obama for not "taking ISIS seriously," and added that "the American people in 2014 and also November 2016 are going to be looking for leaders who want to work to restore America’s leadership in the world." Which, coincidentally, "increases my interest in doing everything I can to change the direction we’re on," vis a vis a 2016 run, notes Politico. More from your Sunday dial, as per Politico: Henry Kissinger: "When an American is murdered on television for the purpose of terrorizing Americans, there should be a response that you cannot, you would not, analyze in terms of a normal response to provocation. Something has to crystallize out of this violence and it won’t happen without our leadership." Mitt Romney: Obama "is so out of touch with reality that he hasn't taken the kind of action necessary to prevent very bad things from happening," like the rise of ISIS. "I don't know if you can't see reality from the fairway." Dianne Feinstein: "I want to congratulate the president. He is now on offense. It is overdue, but the president is now there. I think it is the right thing for America. Time's a-wasting. We've now said that we’re going to go on the offensive. It's time for America to project power and strength." Mike Rogers: Obama should "lay out a very certain case" for action against ISIS, and "engage Congress, the American people on what exactly we’re going to do here."