Council on Foreign Relations member and mega-church pastor Rick Warren has a habit of compromising biblical truth to forge unholy alliances with sworn enemies of the Gospel. Warren has stepped onto the slippery slope and landed exactly in the "interfaith" camp, rather than being faithful to the Lord Jesus Christ and His inerrant Word. His endorsement of the former British Prime Minister's "Tony Blair Faith Foundation" is only part of his "interfaith" sell-out.
For example, when Rick Warren gave President Barack Obama's inaugural invocation in January 2009, his inclusive ecumenical idolatry was loud and clear. Using the modern evangelism tool of "bridge building" in order to reach the lost is one thing, but there is nothing more damaging to the Gospel than inter-faith dialogue - especially on the scale of Warren's ministry.
Were you overwhelmed with the fact that Obama was elected, inaugurated, and you couldn't bear listening to Rick Warren's inaugural prayer? If you missed it, as I did, you would have missed the piece of the puzzle that will bring about the religion of the Antichrist. Listen to this excerpt.
(YouTube link) (start at 0:53 on the counter)
“I humbly ask this in the name of the one who changed my life, Yeshua, Isa, Jesus….”
Of course, Isa would have been understood by Muslims, to be the Islamic prophet mentioned throughout the Koran. Warren’s prayer to Allah, in the name of Isa, should have shocked every Christian who heard that prayer, but the media covered it up. The Bible says,
“The priests said not, Where [is] the LORD? and they that handle the law knew me not: the pastors also transgressed against me, and the prophets prophesied by Baal, and walked after [things that] do not profit." – Jeremiah 2:8
Well, let's try to give Warren the benefit of the doubt and listen to his explanation of who Isa is.
As you heard Warren say, he believes that Isa and the Lord Jesus Christ are one in the same. Why would he do this? According to researcher and Pastor Joe Schimmel, "World peace is dependent on Muslims and Christians recognizing "Allah" and "Yahweh" as the same God."
Schimmel explains that over 300 prominent Christian leaders signed a letter issued by the Yale Center for Faith and Culture claiming the importance of this unity. The letter titled "Loving God and Neighbor Together," was written in response to a signed document by 138 Muslim leaders titled "A Common Word Between Us and You." Brian McLaren, Rick Warren, Robert Schuller and Bill Hybels were just several of the signatories,  as well as Tony Blair and Pope Benedict.
Schimmel goes onto say, "Both of these documents affirmed Muhammad as a "Prophet" of God and declared that world peace was dependent on mutual affirmation of the "unity" of God.
Dr. William Lane Craig, a leading Christian apologist and philosopher, correctly stated that by signing this document, Rick Warren and others were, in effect, signing up to become Muslims! This is because an affirmation of Allah as God is a denial of the Triune God revealed in Holy Scripture. Moreover, the Quran denies that Jesus is the Son of God, no less than nine times."
The Islamic "Common Word" document, in effect, calls on Christians to affirm the Islamic understanding of the unity of God as a precondition to achieving world peace. Part and parcel of implementing Shariah law around the world is the imposition of the worship of Allah worldwide:
Believe in Allah and say not "Trinity." Cease! It is better for you! Allah is only One God. Far is it removed from his transcendent majesty that he should have a son. (Quran, Sura 4:171) 
This Explains A Lot!
This is why there has been a shift away from "sin issues" — like abortion and gay marriage — in Warren's approach - which has been a dumbing down of Christianity. He says he is more interested in issues that he feels are "uniting," such as "poverty, HIV/AIDS, climate change and human rights." These are all U.N. goals, by the way.
Eight years ago, he concocted what he calls the PEACE plan, a bid to turn every single Christian church on earth into a provider of local health care, literacy and economic development, leadership training and spiritual growth. The enterprise has collected testimonials from Bono, the First Couple, Hillary Clinton, Obama, McCain and Billy Graham, who called it "the greatest, most comprehensive and most biblical vision for world missions I've ever heard or read about."  Since when is Socialism biblical?
When public and Church leadership promote Warren's plan, it gives credibility to his lies, and presents Christ as one of many ways to heaven. Influential pastor's, such as John Piper, have given credibility to Warren's work, which only builds trust and helps build more bridges to hell.
In some YouTube videos, Armedinejad states that the Zionists have changed Muslim end time prophecy into one of violence, and that the Imam Mahdi will bring peace. But Muslims are told in the Koran that it is alright to lie to the infidel, so this statement may be completely false. Regardless, as we wait for the Imam Mahdi and the false Jesus of Islam to claw their way out of that silly well, we will then learn how many Christian leaders will lead their congregations down the wide path. The Bible emphatically warned about those who would come presenting a counterfeit Jesus'.
"Then if any man shall say unto you, Lo, here is Christ, or there; believe it not. For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect. Behold, I have told you before. Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not. For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be. For wheresoever the carcase is, there will the eagles be gathered together." Matthew 24:23-28