Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.” Source

Former Housing and Urban Development Secretary Julián Castro is the latest Democratic candidate to qualify for September’s debates, thanks to a new national poll putting him at 2%. But how well do national polls reflect what’s happening on the campaign trail? CBSN political reporter Caitlin Huey-Burns joined “Red & Blue” to explain. Source

Former Vice President Joe Biden’s wife Jill has a simple pitch on the campaign trail: her husband has the best shot to beat President Trump. CBS News campaign reporters Bo Erickson, Nicole Sganga, and Adam Brewster joined “Red & Blue” to break down how this message is playing out among Democratic voters. Source

Three migrant children have died in the past year from the flu Source

After 27 straight wins, Brandon Hanks finally lost to 7-year-old Josiah Brandon Source

The massive search for two firemen, lost at sea, is ramping up. The men were last seen Friday, when they headed out for a fishing trip off the Florida coast. Mireya Villarreal reports. Source

Secretary of State Mike Pompeo’s interview with “CBS This Morning” made news around the world. Pompeo acknowledged that ISIS has regained strength and is more powerful in some places than it’s been in years. David Martin reports. Source

A strong economy is key to President Trump’s reelection campaign. But the trade war with China is fueling concerns about an economic downturn. Paula Reid reports. Source

As the White House vacillates over another another tax cut, economists of all political stripes say: Don’t bother Source

Fund is the first of what could be a wave of investments for people who want to put their money behind animal rights Source