Democratic leaders are deploying a series of "show votes" to put Republicans in the hot seat and draw attention to their divisions on hot-button issues, including a blocked vote on IVF this week. The big picture: Democrats are focusing their attention on birth control, IVF and Supreme Court ethics — all of which are vulnerabilities for the GOP ahead of the November elections. Zoom in: Senate Democrats' have their razor-thin majority on the line in November, and so Majority Leader Chuck...