Good morning and welcome to Morning Joe. It's Monday, April 27th. We are following a number of stories this morning, including what could be a significant development in the war with Iran.

Iran is reportedly offering a new proposal to the U.S. to reopen the Strait of Hormuz, but one that tables the nuclear issue.

We'll see how the Trump administration responds to that, especially given Defense Secretary

Pete Hexas firmly stating this past Friday that Iran will not have nuclear weapons at the end

of the conflict. With us, we have the co-host of our 9 a.m. hour, staff writer at the Atlantic,

Jonathan Lemire, columnist and associate editor at the Washington Post, David Ignatius,

and presidential historian and Pulitzer Prize-winning author, John Meacham.

We will get to the developments with Iran in just a moment, but first this morning,

the alleged gunman who stormed a security checkpoint at a Washington hotel where the White

House Correspondents Association dinner was being held is scheduled to appear in federal court.

Officials say the suspect identified as 31-year-old

Cole Allen of Torrance, California, was carrying multiple firearms and knives when he was

subdued by authorities. It happened on the floor above where the dinner was taking place. President Trump confirmed

that a Secret Service agent was injured in the shooting, but a bulletproof vest protected him.

That agent has since been released from the hospital. U.S. attorney for Washington, D.C., Janine

Piro said the suspect would be charged with two counts of using a firearm during a crime of violence and a second crime of assault on a federal officer using a dangerous weapon.

She added more charges were expected. And acting attorney general Todd Blanch said yesterday the gunman appears to have been

targeting members of the Trump administration. Cole Allen has been described as a highly

educated, part-time teacher and tutor, a former engineering student, and an amateur video game developer.

DC's interim police chief tells the Washington Post

he had no immediately identifiable criminal history

and was not previously known to law enforcement.

...