'Start Here': Iran deal on the menu at state dinner for French president

French president Macron arrives in D.C. at a crucial moment for the Iran deal.

It's Tuesday, April 24, 2018. Here are some of the stories we're talking about on ABC News' new daily podcast, "Start Here."

But for all the pomp and circumstance, both leaders are bringing deadly serious agendas. ABC News chief foreign correspondent Terry Moran says they will both attempt to convince Trump to stay in the Iran nuclear deal.

2. Carnage in Canada

In Canada yesterday, Toronto was playing host to the G7 Leaders Summit. Secretaries of state, foreign ministers and huge security details all gathered as some of the world's top diplomats got together.

But then, a van barreled down a busy sidewalk for nearly a mile and a half -- mowing down dozens of pedestrians. The police have named the suspect, but they haven't said much about his motive or the circumstances surrounding his apparent rampage.

ABC's Tom Llamas in Toronto says a police officer remained calm to take down the suspect alive.

3. Spotlight on Arizona's 8th

There have been two big trends in Congress over the last year: lawmakers resigning after making inappropriate comments to women and special elections occurring in districts that voted overwhelmingly for Trump in 2016.

Both of these trends have collided in Arizona. Former Rep. Trent Franks, R-Ariz., resigned in December after talking to his female staffers about carrying a child for him and his wife. And with Franks gone, two candidates are fighting it out for his seat amid high tensions in both parties.

4. Confirmation controversy

One of Trump’s cabinet nominees may have seen his confirmation prospects mortally wounded.

Rear Adm. Ronny Jackson, the military doctor who serves as the president's personal physician, had been nominated to lead the Department of Veterans Affairs. And a lot of people were wondering if he can run a government department.

5. Shift in succession

You've seen the pictures: William and Kate, the Duke and Duchess of Cambridge, in the doorway of St. Mary's Hospital in London, presenting their new baby boy to the cameras yesterday.

Even though she might not know it yet, this moment was a big one for royal sibling Charlotte, too. That's because for the very first time in the history of the monarchy, she's not being passed over by her younger brother.

ABC’s James Longman says a new law from Parliament about the line of succession to the throne has flipped the script on hundreds of years of tradition.

"Start Here" is a daily ABC News podcast hosted by Brad Mielke featuring original reporting on stories that are driving the national conversation. Listen for free at Apple Podcasts -- also available on TuneIn, Spotify, Stitcher, Google Play Music, iHeartRadio and the ABC News app.

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