Tweeting dire warnings to Iran sounds more like a domestic distraction than a prelude to diplomacy or even armed conflict.

By reneging on the Iran nuclear pact, President Trump has undermined national security and and the future of U.S. diplomacy.

The U.S. already has benefited from the nuclear accord implemented with Iran last weekend.

Rep. John Boehner was right to invite Benjamin Netanyahu to speak to Congress.

With talks on Iran's nuclear program likely to be extended, it's crucial that Congress continue to give the administration room to negotiate and not scuttle the chance for a deal with tough talk and unrealistic demands.

Unfortunately, a group of 59 Senators, including Maryland's Ben Cardin, has introduced and is seeking a vote on a bill (S. 1881) that would impose further sanctions on Iran, reopen the terms of the first phase agreement and impose new and unrealistic restrictions on the comprehensive deal. The bill's authors claim their proposal for additional sanctions supports a diplomatic solution. As President Obama and the 10 Senate Democratic committee chairs have warned, it would not.

We can't trust Iran, but war is not inevitable

The nuclear accord reached in Geneva last month has sparked a robust debate in the U.S. and around the world. Was the agreement a major achievement in preventing Tehran from obtaining the nuclear bomb, or does it leave the regime's nuclear apparatus intact? Well, if you ask the ayatollahs, the world has at last recognized their "right" to enrich uranium.

Iran nuclear deal is a failure on par with Chamberlain's deal with Hitler

Diplomatic accord restricting Iran's nuclear program while release some of its assets is an historic first step — but not a guarantee of success

Once again, intense negotiations with Iran over its nuclear program have failed to produce a deal, but there remains some reason for optimism after the weekend's high-level negotiations in Geneva.

Iran's 'peace offensive' in nuclear talks could signal it truly wants better relations with the West, or that it's simply running out the clock in order to build a bomb

Iranian President Hasan Rowhani's conciliatory words at the UN last month won't mean much if his country continues enriching uranium

Rouhani's charm offensive

There is a chance to settle the Middle East's intractable conflicts — if Muslims, Christians and Jews work together.

While Washington is preoccupied with other things, Iranian President Hasan Rowhani may be opening the door to genuine progress.

Iran's latest diplomatic moves are more talk than substance

Talks with Iran represent a good first step toward peace

If we can build international pressure to stop the use of chemical weapons in Syria, why not to end the war?

Getting Russia involved in chemical weapons solution could help bring peace to the region

Mitt Romney was right: Russia is our No. 1 geopolitical foe

Rather than another ill-conceived military intervention in the Middle East, we should focus on efforts to foster ties to the new, moderate regime in Iran.

How will neo-cons justify a war with Iran now that it has a moderate president?

Shippers should have to choose between doing business in Maryland and in Iran