Apple News has key takeaways from the first day of the RNC, where a big theme was that America’s suburbs are at risk. Politico reports that the Trump administration has previously supported the removal of exclusionary housing regulations. And Politico reporter Zack Stanton talks to Thomas Sugrue, director of metropolitan studies at New York University, about the evolution of the suburbs and some misunderstandings about these areas.

NPR and the Washington Post report that more than half a million mailed ballots were rejected in this year’s primaries. And ABC News says Florida could be a surprising model for states preparing to count more mail-in votes during the election this fall. Plus, some tips from Apple News to make sure your vote counts.

Vox breaks down why the flu vaccine might be more important than ever this year. And NPR  explains how to make sure you get a flu shot.