WASHINGTON -LRB- CNN -RRB- -- Israeli Prime Minister Benjamin Netanyahu reiterated his concern over the potential of a nuclear-armed Iran during meetings with top congressional leaders Tuesday . Israeli Prime Minister Benjamin Netanyahu walks Tuesday with Reps. John Boehner , left , and Nancy Pelosi . He met with the Senate Foreign Relations Committee first , followed by House Speaker Nancy Pelosi and House Minority Leader John Boehner . An Iranian regime armed with nuclear weapons `` is a great danger to all of us , to Israel specifically and to the moderate Arab regimes , -LSB- and -RSB- to America , '' Netanyahu said after his meeting with Pelosi and Boehner . `` Especially if this regime were to arm itself or arm terrorists with nuclear weapons , the consequences could be unimaginable . '' Netanyahu also reiterated his call for normalizing relations between Israel and the `` broader Arab world '' while moving forward on the Israeli-Palestinian peace process . Watch where Mideast flash points could be '' `` We have to do this in tandem , '' he said . `` That 's going to be our policy . ... If we do it together , we 'll get a lot further , a lot faster . '' Pelosi said she endorsed a two-state solution for the Israelis and Palestinians , but emphasized that it `` must be a solution that provides for a democratic Jewish state of Israel living side by side with her Palestinian neighbors . '' `` The question of Iran is one that is of concern to us in Congress , '' she said . '' ... It is an issue for the world . It is important for all of us to work together to be sure that Iran does not develop a weapon of mass destruction . '' Netanyahu is on his first visit to Washington since becoming prime minister earlier this year -- his second time as head of Israel 's government . He met Monday with President Obama at the White House and dined with Secretary of State Hillary Clinton . Obama offered the hawkish Israeli leader a small diplomatic victory , warning that he would not allow Iran to drag out talks as a way of buying time while it develops nuclear weapons . Speaking at an Oval Office news conference , Obama again refused to commit to an `` artificial deadline '' for Iranian negotiations . But he also warned that he would not allow such talks , which he expects to accelerate after the Iranian presidential election in June , to be used as an excuse for delay . Watch Obama start the clock on Iran '' `` We 're not going to have talks forever . We 're not going to create a situation in which the talks become an excuse for inaction while Iran proceeds with developing ... and deploying a nuclear weapon , '' he said . He said the United States is not `` foreclosing a range of steps , including much stronger international sanctions , in assuring that Iran understands that we are serious . '' The issue of Iran 's nuclear ambitions has become increasingly urgent in recent months . Netanyahu wanted a time limit for negotiations relating to such ambitions , with the threat of military action if no resolution is reached . Both Israel and the United States believe Iran is seeking nuclear weapons under the guise of a civilian nuclear energy program ; Tehran denies the accusation . Israeli leaders have pointed to Iranian President Mahmoud Ahmadinejad 's calls for the end of Israel as a Jewish state , and argue that quick action is needed . Clinton and Netanyahu also talked about Iran , among other issues , during a 90-minute working dinner Monday night , according to a senior State Department official . `` Clinton 's messages were entirely consistent with President Obama 's , '' the official said . `` She reiterated our support for a two-state solution , and explained our strategy for direct engagement as a means to prevent Iran from developing a nuclear weapons capability . '' In his appearance at the White House , Netanyahu emphasized that while `` the common goal is peace ... the common threat we face are terrorist threats and organizations that seek to undermine -LSB- that -RSB- peace and threaten both our peoples . '' The prime minister called Iran the biggest threat to peace in the region . `` If Iran were to acquire nuclear weapons , it could give a nuclear umbrella to terrorists , or worse , could actually give -LSB- them -RSB- nuclear weapons . And that would put us all in great peril , '' he said . Obama is considered to have a more conciliatory approach to the Arab and Muslim world than Netanyahu . Obama supports the idea of a Palestinian state alongside a secure Israel . Netanyahu has not endorsed the idea , arguing that Israel first needs security guarantees and a clear Palestinian partner for peace talks . The Palestinians issued a statement after the meeting criticizing Netanyahu for failing to more explicitly endorse a two-state solution . Netanyahu `` missed yet another opportunity to show himself to be a genuine partner for peace , '' said chief Palestinian negotiator Saeb Erakat . `` Calling for negotiations without a clearly defined end goal offers only the promise of more process , not progress . '' Watch how hard-liners have driven breakthroughs for peace '' Despite their differences , Obama and Netanyahu agree on numerous key issues , such as U.S. military and financial support for Israel . Obama also supports funding for Palestinian entities not controlled by Hamas , which controls Gaza and which the United States labels a terrorist organization . Before making his trip to Washington , Netanyahu met with leaders of Jordan and Egypt , viewed as potential partners in the effort to bring peace to the region . Obama will host Egyptian President Hosni Mubarak on May 26 and Palestinian Authority President Mahmoud Abbas on May 28 . CNN 's Paula Hancocks contributed to this report .