Situational awareness: Rep. Tim Murphy (R-Pa.) will resign from Congress after reports he'd pushed his mistress to have an abortion.
The NRA is calling on the federal government to review whether to ban bump stocks, the device reportedly used by Las Vegas shooting suspect Stephen Paddock:
Be smart: Most lawmakers hadn't heard of these devices. This is a politically safe way for Republicans to look like they're acting on guns. But Republican lawmakers tell me there has been no sign of movement in either the House or Senate toward serious, substantive gun control.
What it will take to get to Mars — the latest Axios Expert Voices post addresses the challenges we need to face before sending people to the Red Planet.