It is hard to believe a president of the United States would actually put his name on an agreement with the terrorist state Iran that is so bad, so poorly constructed and so terribly negotiated that it increases uncertainty and reduces security for America and our allies, including Israel. It was amateur hour for those charged with striking this deal with Iran, demonstrating to the world, yet again, the total incompetence of our president and politicians. It appears we wanted a deal at any cost rather than following the advice of Ronald Reagan and walking away because "no deal is better than a bad deal." After the agreement goes into effect: All nuclear-related sanctions will be lifted. Iran receives a windfall of $150 billion, which will no doubt fund terrorism around the world. Iran will receive notice before any inspections take place. Iran can block inspection of certain facilities. Iran will soon be able to continue expanding its conventional arms and guided missile programs without facing snapback sanctions. Iran can keep American prisoners, including one former U.S. Marine and, very sadly, a Christian minister. Iran can continue to operate about 6,000 centrifuges. Other countries will be free to invest in Iran. Iran can continue to solidify bonds with Russia, China and North Korea. All these other countries will benefit, and the United States loses on all fronts. In the end, Iran will be a nuclear state. This will lead to an all-out arms race in the region. All the Middle East, southern Europe and American interests will be within the footprint of Iran's missiles. Interestingly, Saudi Arabia and others, who were vehemently opposed to the deal on all fronts, are now in favor -- Washington has naively provided new weapons deals and security assurances. The problem is that Iran poses an existential threat to Israel, our Middle Eastern allies and the United States. If we have to wait until the next president is sworn in to revisit this nuclear weapons agreement, then the next president better be someone who knows how to negotiate and who will do what is best for the United States. When I am elected president, I will renegotiate with Iran -- right after I enable the immediate release of our American prisoners and ask Congress to impose new sanctions that stop Iran from having the ability to sponsor terrorism around the world. In fact, if I am elected, I am sure the prisoners will be released before my taking office. We will approach other nations and make it clear that we will not allow Iran to develop nuclear weapons. We will use all the tools of power available, hopefully avoiding direct action. But make no mistake, a Trump presidency will demonstrate the will to do whatever is necessary to protect the interests of the United States, Israel and its allies. My opposition to the war in Iraq is well documented. I was against the war from the very beginning, all the way back in 2004. I had the vision and foresight to understand that Iraq and Iran were equal powers, and that our takeover of Iraq, when there was no real evidence of weapons of mass destruction, would be catastrophic for the entire region, enabling Iran and other forces to become a more dangerous threat than Saddam Hussein ever thought of being. We now have the Islamic State and the threat of nuclear weapons from Iran, both a direct result of the shortsighted incompetence of those in Washington during the war in Iraq and long before. Negotiating from a position of strength is important. Having the will to follow through is fundamental. A Trump presidency will force the Iranians back to the bargaining table to make a much better deal. A Trump presidency will make America great again. Businessman Donald J. Trump is seeking the 2016 Republican presidential nomination.